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http://www3.interscience.wiley.c ... 2002_guideline.html
1. General Information
Angewandte Chemie International Edition and its German version Angewandte Chemie are owned by the Gesellschaft Deutscher Chemiker (German Chemical Society) and are published by Wiley-VCH. This leading journal for all fields of chemistry publishes a variety of articles (see below). Both editions of the journal will have 52 issues in 2008 in print and online (in Wiley InterScience; all articles are available online weeks before the printed version appears). Contributions may be submitted in English or German. Angewandte Chemie does not publish manuscripts that have already appeared.
The author must inform the editor of manuscripts submitted, soon to be submitted, or in press at other journals that have a bearing on the manuscript being submitted. If the manuscript is, in fact, a revised/extended version of a manuscript previously rejected by Angewandte Chemie, the author must inform the editor about the previous submission in the cover letter and explain in detail which changes have been made. The Ethical Guidelines for Publication in Journals and Reviews issued by the European Association for Chemical and Molecular Sciences (EuCheMS) are followed and applied by Angewandte Chemie; these guidelines are similar to those of the American Chemical Society. Authors should declare any conflict of interest in their letter to the editor, for example support of the research by companies who stand to profit from publication of the results. Authors submitting a manuscript to Angewandte Chemie for the first time are asked to characterize their main research interests with a maximum of five keywords from the Keyword List for Authors and Reviewers.
All Manuscripts should be submitted through manuscriptXpress. Please prepare a single file (allowed formats: Word, RTF, Postscript, PDF) containing all schemes, figures, and tables integrated in the text, and with the Supporting Information at the end, when appropriate. Then follow the instructions on the submission website. In this file, please include a short text justifying why your article should appear in Angewandte Chemie. Please use the box "Cover letter" for your cover letter and avoid formatted text (italics, sub/superscript, etc.) in it. Any information that is intended for the editorial office only (e.g., suggested reviewers and conflicts of interest with potential reviewers) should be given in the box "Additional Upload Comment". If you experience any problems please make use of the contact form at this site. When your article has been accepted you will be informed of the procedure for submitting revised manuscripts.
MSword templates for Reviews, Minireviews, Essays, Highlights, and Communications are available on the homepage in the section "For Authors".
2. Types of Contribution
Although Reviews, Minireviews, Essays, and Highlights are generally written upon invitation of the editor, they can also be the result of an author's own initiative. However, the editor should be informed in advance about such an intended contribution.
2.1. Review Articles
Review articles should be written by leading experts and deal with topics of high current interest in any area of chemistry. Rather than an assembly of detailed information with a complete literature survey, a critically selected treatment of the material is desired; unsolved problems and possible developments should also be discussed.
Reviews should be divided into numbered sections, as in this "Notice to Authors". Cross-references in the text should also use these section numbers. The Review starts with a lead-in (1000 characters, no references). This text should not be a mere summary but rather should—together with a round picture 18.5 cm in diameter (frontispiece)—arouse the readers' interest. The first section of the Review itself, the Introduction, should primarily introduce the nonspecialist to the subject in as clear a way as possible. A Review should conclude with a section entitled Summary and Outlook, in which the achievements of and new challenges for the subject are presented succinctly. In addition, biographical sketches (maximum length 560 characters) and portrait-quality black-and-white photographs of the correspondence authors should be submitted.
Length: A Review should not be of more than 65000 characters, including footnotes, literature citations, tables, and legends. If a longer article is planned, the agreement of the editor should be sought as early as possible.
2.2. Minireviews
A Minireview (up to 25000 characters) should present current topics in a concise review style. Minireviews offer the flexibility to treat topics at a time, and in a suitable manner, when a Review would still be premature or inappropriate. The format is the same as that outlined for Reviews in Section 2.1; however, Minireviews do not have a frontispiece and the lead-in should be no longer than 800 characters.
2.3. Essays
In Essays (up to 15000 characters) themes from every aspect of chemistry, including the philosophy or history of science, are addressed freely. Use of unpublished results from original research should be extremely limited. Primarily, known topics should be discussed illuminatingly and critically from a new vantage point, and they should be suitably illustrated. In addition, a biographical sketch (maximum length 560 characters) and a portrait-quality black-and-white photograph of the correspondence author should be submitted.
2.4. Highlights
In Highlights (up to 8500 characters) very important new results of original research should be described, in general by a third person, with a view to instruct and to highlight their significance. The results should be presented clearly, but as succinctly as possible, without the comprehensive details required for an original article. Highlights should include only essential formulas and figures as well as not more than 20 references.
2.5. Communications
Communications are short notes on experimental and/or theoretical studies in all branches of chemistry. The results must be of general interest or at least contribute to the development of an important area of research. The essential findings presented in a Communication or significant parts of them may not already have appeared in print or in electronic online systems (for example, in online resources, in reviews, proceedings, or preprints). Contributions that are too specialized for the general readership of Angewandte Chemie will be returned to the authors without further external review (ca. 25%). All other Communications are sent to two independent referees. Authors are welcome to suggest referees.
Please be considerate to our many readers for whom English is a foreign language—use a simple, clear style and avoid jargon. Communications submitted in English to Angewandte Chemie will be printed in German only when an author provides a translation, perhaps from a current or former postdoc, or gives specific reasons for wishing to have the article appear in German. In all other cases the Communication will appear in English in both editions of the journal.
Length: The maximal length of a Communication, inclusive of all literature citations, footnotes, and tables, is 10000 characters; formulas and figures may be added. Longer Communications will be accepted only if their quality warrants special consideration and a written justification of their length is provided. Details that are of importance to the referees and to specialists, but not to most of the readers, can be submitted as Supporting Information (see Section 3.2), which will be made accessible on the Web. Copies of cited publications not yet available publicly should be submitted along with the manuscript. Unpublished results and lectures should only be cited for exceptional reasons.
The identity and purity of all new compounds must be fully characterized by appropriate analytical methods (e.g. NMR spectroscopy, X-ray crystal structure analysis, elemental analysis, etc.). These data should be given in the Supporting Information in the event that they exceed the scope of the Experimental Section.
A Communication returned to the author for revision should be returned to the editorial office within three weeks. If more time is needed the editor must be informed.
Communications should not be divided into sections. However, experimental details or methods should be summarized concisely under the heading Experimental Section or Methods. The first paragraph of a Communication should be formulated as an introduction that provides the nonspecialist reader with a general idea of the state of the art of the field and allows the importance of the results to be put into perspective. In the final paragraph the results should be summarized succinctly and one sentence should be devoted to their significance and—if appropriate—to the next challenges.
2.6. Correspondences
Critical comments on publications in Angewandte Chemie are welcome if they contribute to scientific discussion. The author of the publication to which the Correspondence pertains will have the opportunity to reply. This reply will be sent to the author of the Correspondence.
2.7. Book Reviews, Meeting Reviews, Obituaries
Book and Meeting Reviews as well as Obituaries are written upon invitation. Nevertheless, suggestions for books to be reviewed and for meeting reviews are welcome, as are suggestions for possible authors. Publishers should send brochures or preferably books directly to the editorial office.
An informative Book Review should provide answers to the following questions: Has the area of research covered in the book been the focus of recent research efforts, or does the book provide a fresh look at an already established area? Does the book have other merits, or is it unnecessary? Are the different aspects of the book's topic appropriately weighted? What benefits does the book offer to different types of readers?
A Meeting Review should deal with the following questions: Why is the presented field of research currently of particular interest? How has it developed over the past few years? What are the most important unanswered questions? Which contributions were the highlights of the conference? Among the answers given to the most important questions of the field, is there one that represents the "biggest leap forward"? Have any new research topics arisen? Are there any (new) prospects in the application of developments in the field?
2.8. Corrigenda
Scientifically incorrect or incomplete information in published articles should be corrected in a Corrigendum—which is as short as possible. Corrigenda are printed directly after the Table of Contents. We request that authors submit the Corrigendum electronically like any other article through manuscriptXpress and that they cite the publication to be corrected as well as its "digital object identifier" (DOI).
3. General Remarks
3.1. Table of Contents and Keywords
For all manuscripts (with the exception of Book Reviews, Meeting Reviews, and Corrigenda) a short text for the Table of Contents of the issue (up to 450 characters; templates available from the section "For Authors" on the homepage) and a maximum of five keywords in alphabetical order should be included as the last page of the manuscript. At least two of the keywords should be taken from the Keyword Catalogue (see the complete Notice to Authors on the homepage). The text for the Table of Contents should (ideally with the help of a graphic, color is free here) arouse curiosity. Repetition or a paraphrase of the title and presentation of experimental details should be avoided.
3.2. Supporting Information
All material that is intended to be published only online as Supporting Information should be presented succinctly (in English). The author bears full responsibility for the content of the Supporting Information. Color, animated multimedia applications, films, and so on are welcome and published online at no cost to the author or reader. Please refer to such applications in the article itself where appropriate. In general, the contents of the Supporting Information should be mentioned briefly in the article, either as a footnote or in the Experimental Section/Methods. To submit multimedia files, please proceed as described on our homepage.
3.3. Color
Printing of Schemes and Figures in color is expensive, and we request that part of the additional costs be carried by the author. If color printing is essential and the author does not have access to funds for color printing, the editor can make an exception.
3.4. Cover Picture and Other Eye-Catching Graphics
Suggestions for the cover or the inside-cover picture of the issue (with an explanatory text up to 500 characters) or for the frontispiece of the Communications section are welcome (diameter of the circle 16.5 and 18.5 cm, respectively). Part of the additional cost for color printing must be paid by the author. Assistance for the design of these pictures is available on the homepage. Animated graphics can also be deposited for cover pictures.
3.5. Correction Process
The correspondence author will receive page proofs (in most cases as compressed PDF files). They should be returned to the editorial office within three days. Corrections after "Early View" and before issue publication will be accepted only if formal aspects or misprints are concerned. For all the other corrections a Corrigendum has to be submitted (see Section 2.8).
3.6. Reprints
The main correspondence author of a Review will receive a complementary PDF in one of the two languages which allows 50 printouts as well as complimentary copies of both editions. For all other types of articles, complimentary copies of both editions are provided. Reprints and high-resolution PDFs can be ordered for a reasonable price before an article has been published.
3.7. Press Releases
Each week, the publisher issues a press release about at least one Communication. It goes without saying that authors are welcome to enhance the visibility of their article through a press release from their institution, but such a release, about which the editorial office should be informed, must not precede the online publication of the article (embargo date).
3.8. NIH Policy
On behalf of our authors who are also US National Institutes of Health (NIH) grantees, we will deposit in PubMed Central (PMC) and make public after 12 months the peer-reviewed version of the author's manuscript. By assuming this responsibility, we will ensure that our authors are in compliance with the NIH request, as well as make certain the appropriate version of the manuscript is deposited. We reserve the right to change or rescind this policy.
4. Guidelines for the Preparation of Manuscripts
Authors are requested to take special care with respect to the following points when preparing a manuscript for publication in Angewandte Chemie:
a) Greek letters should be typed in the character font Symbol; special characters must be clearly recognizable; sub- or superscripts and italicized or boldface text should be clearly distinguishable. All pages, including those with the references, tables, and legends, must be numbered consecutively.
b) American spelling should be used throughout the manuscript.
c) The title, which should be as succinct as possible, ends with two asterisks [**] if a footnote is desired (see below). The first letters of all words, except coordinating conjunctions, articles, and prepositions, should be capitalized. No references should be used. Then follows the first name (written in full), other initials, and surname of each author, and an asterisk to indicate each correspondence author (further symbols to indicate the affiliation(s) of the author(s) are not required). A dedication line can also be included. Please avoid chemical formulas in the title—they may lead to difficulties when the title is integrated into electronic data bases.
The names of all authors according to research group (with academic title and all first names as initials), the complete postal address (preferentially in the country's official language), fax number, and E-mail address(es) of the correspondence author(s) appear after the author byline or, if applicable, after the dedication, and are preceded by the symbol . For the noncorrespondence authors, only the address of their academic institution or company is required. In addition to the e-mail address the address of the homepage of the correspondence author may be given. Immediately after the addresses, the acknowledgments—also for any financial support—in Communications are included in a footnote labeled [**], which, if applicable, also contains the series title and relevant series information. Example: [**] Low-Yield Chemistry, Part 100. This work was supported by the Science and Research Foundation. We thank Dr. A. Smith, London, for the spectra and the XYZ company for chemicals. Part 99: Complete citation or if cited in text (and only then) reference to a citation in the list of references. (In Reviews and Minireviews, acknowledgements are placed at the end of the text before the references.)
d) References to the literature or to footnotes are typed in square brackets as superscripts after punctuation. These are numbered consecutively and listed (with the numbers in square brackets but not as superscripts) at the end of the main body of text. They should not contain comprehensive experimental details (which should be included in the Experimental Section instead) or long explanatory text. The names of all authors should be given in upper- and lowercase, starting with the initials of first names followed by the surname (et al. should only be used when there are more than ten authors; in this case, the complete reference has to be given in the Supporting Information). The penultimate and last names should be separated by a comma (not by "and"). Where possible, composite references should be used, and can be separated by a), b), c)—not (a), (b), (c). Please double-check your references to ensure correct (online) links.
Journal citations: Only a comma is required between the name of the last author and the title of the journal. Journal titles should be italicized and abbreviated in accordance with the "Chemical Abstracts Service Source Index" (CASSI; no commas appear in the journal names). The journal title should be followed (no comma) by the year of publication (in boldface), comma, volume number (in italics), comma, first page or page range, period (or a semicolon within a composite reference). When citing publications from Angewandte Chemie, please quote both the German and the International editions. The corresponding page numbers of the German edition of an article can be found in the index at the end of each issue, in the annual index of the International Edition, and online. Examples:
[1] a) H. J. Ache, Angew. Chem. 1989, 101, 1–21; Angew. Chem. Int. Ed. Engl. 1989, 28, 1–20; b) H. Frey, Angew. Chem. 1998, 110, 2313–2318; Angew. Chem. Int. Ed. 1998, 37, 2193–2197.
[2] A. Kraft, Chem. Commun. 1996, 77–79, and references therein; Sci. Am. 1984, 250(4), 7–8; B. Krebs, H. U. Hürter, Acta Crystallogr. Sect. A 1981, 37, 163; G. Eulenberger, Z. Naturforsch. B 1981, 36, 521; D. Bruss, Appl. Phys. B, DOI 10.1007/s003409900185.
Book citations: Books without editor: E. Wingender, Gene Regulation in Eukaryotes, VCH, Weinheim, 1993, p. 215. Books with editor: T. D. Tullius in Comprehensive Supramolecular Chemistry, Vol. 5 (Eds.: J. L. Atwood, J. E. D. Davies, D. D. MacNicol, F. Vögtle, K. S. Suslick), Pergamon, Oxford, 1996, pp. 317–343.
Miscellaneous citations: C. R. A. Botta (Bayer AG), DE-B 2235093, 1973 (in cases where the patent is not available online at the respective patent office the corresponding reference to Chemical Abstracts should be added). A. Student, PhD thesis, University of Newcastle (UK), 1991. G. Maas, Methoden Org. Chem. (Houben-Weyl) 4th ed. 1952–, Vol. E 21/1, 1983, pp. 379–397. "Synthesis in Biochemistry": R. Robinson, J. Chem. Soc. 1936, 1079. S. Novick, "Biography of Rotational Spectra for Weakly Bound Complexes", can be found under http://www.wesleyan.edu/chem/faculty/novick/vdw.html, 2005. G. M. Sheldrick, SHELXS-96, Program for the Solution of Crystal Structures, University of Göttingen, Göttingen (Germany), 1996.
e) Tables should be provided with a brief legend (use the word "Table" throughout the text unabbreviated) and should only be subdivided by three horizontal lines (head rule, neck rule, foot rule). Tables with only one or two columns and columns with only one or two entries are to be avoided. For footnotes in tables, Roman lowercase letters set in square brackets are to be used. All tables are to be numbered (Arabic numerals) in the sequence in which they are referred to in the text. Physical data for several compounds should be summarized in a table; otherwise, a footnote is sufficient. Structural formulas in tables of the final manuscript must be submitted on a separate sheet as well.
f) To minimize problems in end-of-line word divisions, formula numbers should be used instead of complicated chemical formulas in text (but must be avoided in the title). Formulas for coordination compounds should be enclosed in square brackets (IUPAC recommendation). The oxidation state used with names of elements should be in capital letters within parentheses; with element symbols it should be superscripted (iron(II), FeII; not I(III) but IIII).
For the final manuscript, all formulas and figures should be submitted on separate sheets and not integrated in the manuscript (recommendations for ideal figure sizes can be found in the Checklist). Each figure and scheme should have a legend, and these should be listed together in numerical order after the references. All figures and schemes should be mentioned in the text in numerical order. Text should be avoided so that the graphical elements can be used in both the English and German editions. Different types of atoms in structural figures should be clearly distinguishable (by different graphical shading). Use the full word "Figure" in all parts of the manuscript.
Symbols of physical quantities, but not their units (e.g. T (for temperature, in contrast to T for the unit Tesla), but K as unit; J, but Hz; a, but nm), stereochemical information (cis, E, R, etc.; d and l on the other hand are to be written in small capitals), locants in compound names (N-methyl), symmetry groups and space groups (C2v), and prefixes in formulas or compound names such as tBu and tert-butyl must be in italics (but not Latin phrases such as "in situ"), and formula numbers in boldface (Arabic numerals and, if necessary, Roman lowercase letters). Labels of axes show the units separated by a slash (e.g., T/K→) and should read horizontally.
Chemical formulas must be of high quality for direct reproduction and should be numbered consecutively. Abbreviations such as Me, iPr, sBu, and Ph (not φ) may be used in formulas; however, their use should be consistent. General substituents should be indicated by R1, R2 (not R1, R2 which means 2R) or R, R′. The spatial arrangement of the substituents should be indicated by hatched lines and solid wedges. The following details are important for formulas: Font for script: Helvetica; size of symbols for elements: 3 mm; size of formula numbers in boldface: 3.5 mm; interatomic bond lengths: 6 mm. Writing above or below a reaction arrow (no capitalization) should be 2.8 mm; detailed reaction conditions should be given in the legends; a minus sign should be as long as the crossbar of a plus sign. The total maximum width is 14 or 28.8 cm for Highlights, (Mini)reviews, and Communications and 9.1, 19, or 28.8 cm for Essays. Such formulas will be reduced to 60%. Other sizes for formulas are also acceptable, but must follow these proportions (3:3.5:6 (:140)).
Line drawings, photographs, and color artwork should be sharply defined, with high contrast, and without masking screen. Examples of well-presented figures and formulas can be found in issue 2/96, p. 198 ff., and in issue 1/96, p. 86 ff. Graphics of linear plots, particularly reciprocal velocity plots, should be avoided and replaced in the text in terms of slopes, intercepts, and standard deviations.
g) Equations should be labeled consecutively (numbers or Roman lowercase letters in parentheses) and mentioned by label in the text; e.g., "[Eq. (1)]" or "defined as in Equation (a)".
h) Physical data should be quoted with decimal points and negative exponents (e.g. 25.8 JK−1mol−1), and arranged as follows where possible—but in any event in the same order within the manuscript (when measurement conditions remain unchanged they need only be mentioned once, for instance in a footnote): m.p./b.p. 20°C; [α]D20=−13.5 (c=0.2 in acetone) (please also give units for [α] and c, usually degcm3g−1dm−1 and gcm−3, respectively); 1H NMR (200 MHz, [D8]THF, 25°C, TMS): δ=1.3 (q, 3J(H,H)=8 Hz, 2H; CH2), 0.9 ppm (t, 3J(H,H)=8 Hz, 3H; CH3); IR (Nujol): ν˜=2972 (w), 2907 (w), ..., 1026 (s; νas(SiOSi)), 971 (vs), ..., 666 (w; νs(SiOSi)), ..., 439 (m), 401 cm−1 (m); UV/Vis (n-hexane): λmax(ε)=320 (5000), 270 nm (12000); MS (70 eV): m/z (%): 108 (20) [M+], 107 (60) [M+−H], 91 (100) [C7H7+]. Plane angles in products of units can have either ° or deg as the unit.
i) Nomenclature, symbols, and units: The rules and recommendations of the International Union of Pure and Applied Chemistry (IUPAC), the International Union of Biochemistry (IUB), and the International Union of Pure and Applied Physics (IUPAP) should be adhered to.
j) Abbreviations and acronyms should be used sparingly and consistently. Where they first appear in the text, the complete term—apart from the most common ones such as NMR, IR, and tBu—should also be given. In Reviews, where a number of abbreviations and acronyms occur, these can be explained in a footnote on the first page or in a glossary.
k) Supporting Information: Succinct text and the necessary graphics must be submitted as a pdf file. The title of the article and the names of all the authors have to appear at the very top. In the Supporting Information (only!), the graphics should be incorporated with the text and not be present as separate files. The author must keep a copy to make available to readers who do not have access to the Web.
5. Instructions for Preparing the Electronic Version of a Manuscript
Graphics should be integrated in the text of the original manuscript. To ensure trouble-free reproduction of the electronic graphics files, it is important to refer to the information given in the "Guidelines for the Preparation of Graphical Material".
Tables are edited in the text and therefore should not be sent as graphical elements. The tables should be set up with tabulators, not with the space bar.
Preferred word-processing programs are: Microsoft Word for Windows 2000 and updates. Documents prepared with other word-processing programs will be converted if possible. ChemTeX files, for example, cannot be used. LaTeX users please see our separate instructions.
Don't use end-of-line word divisions. Please use only one font type (except for Greek letters, which should be typed in the Symbol font).
The text should be typed as "continuous text", that is, with carriage returns only at the end of a paragraph, title, heading, and similar features. Formula numbers and in the reference section the year of publication (but not headings such as "Table 1" or "Figure 1") should be in boldface.
6. Crystal Structure Analysis
If a crystal structure analysis is an essential part of a Communication the following data should be given in a footnote in the manuscript: refined formula, formula weight Mr, crystal dimensions, crystal system, space group, unit-cell dimensions and volume, no. of formula units in the unit cell Z, calculated density ρcalcd, linear absorption coefficient μ, radiation and wavelength, temperature of measurement, 2θmax, no. of measured and independent reflections, Rint, R, wR, residual electron density, a brief description of the data collection, and the solution and refinement of the structure, and the database at which the detailed results are deposited.
The details for the confirmation of the structures of synthetic intermediates should be kept short. An ORTEP-type plot of these structures will not be reproduced.
Crystallographic data should not be sent as Supporting Information but should be deposited with either the Cambridge Crystallographic Data Centre (CCDC, 12 Union Road, Cambridge CB2 1EZ (UK); tel.: (+44)1223-336-408, fax: (+44)1223-336-033, e-mail: deposit@ccdc.cam.ac.uk) for organic and organometallic compounds or with the Fachinformationszentrum Karlsruhe (FIZ, 76344 Eggenstein-Leopoldshafen (Germany); tel.: (+49)7247-808-205, fax: (+49)7247-808-666; e-mail: crysdata@fiz-karlsruhe.de) for inorganic compounds. The deposition number must be supplied with the submitted manuscript. Please ensure that the data deposited with the database are identical to those in the manuscript.
Referees can retrieve the information directly from the appropriate database if authors of articles containing a crystal structure proceed as follows:
For organic and organometallic compounds: Before submission of the manuscript, send your data including author and journal details in CIF format as a plain-text ASCII file by e-mail to: deposit@ccdc.cam.ac.uk. The data will be assigned a registry number, which has to be included in the manuscript.
For inorganic compounds: FIZ accepts only data deposited in electronic form (in CIF format). Before submitting your manuscript, send the data directly to FIZ by e-mail (or on disk). You will then be given a CSD number, which has to be included in the manuscript.
Please use the free online Checkcif service provided by the International Union of Crystallography (checkcif@iucr.org) and submit the Checkcif report along with your manuscript.
7. Keyword Catalogue
Authors can ensure that a keyword search within Wiley InterScience leads to a list that is as complete as possible of relevant publications in the Wiley-VCH journals Angewandte Chemie, ChemBioChem, ChemMedChem, ChemPhysChem, Chemistry—A European Journal, Chemistry—An Asian Journal, European Journal of Inorganic Chemistry, European Journal of Organic Chemistry, Advanced Synthesis & Catalysis, or Zeitschrift für anorganische und allgemeine Chemie by preferably using keywords from the common keyword catalogue of these journals. This catalogue is subdivided to facilitate the search for keywords but can also be completely searched. Some of the keywords are used in more than one area. As with all such records, a few guidelines facilitate its use, and these are briefly explained below:
At least two of the maximum of five keywords assigned to an article must come from this list.
In the German edition of Angewandte Chemie, the German equivalent of these terms will be used.
Named reactions will be incorporated only in exceptional cases. Generally the reaction type is selected instead. For example, Diels–Alder reactions will be found under "cycloadditions" and Claisen rearrangements under "rearrangement".
Heteroanalogues of compounds are mainly classified under the C variants, for example, (hetero)cumulenes, (hetero)dienes. A few aza and phospha derivatives are exceptions.
Compounds with inorganic components that are central to the article are listed under the element, for example, iron complexes under "iron" and, if appropriate, the ligand type. Some group names such as "alkali metals" exist alongside the names of important members of the group, for example, "lithium". In such cases the group name is used for these members only when comparative studies are described. The members that do not appear separately are also categorized under the group name.
A keyword in the form "N ligand" is only chosen if a considerable portion of the paper deals with the coordination of any ligand that coordinates through the atom concerned (in the example, nitrogen).
Spectroscopic methods are assigned as keywords only if the article is about the method itself or if the spectroscopic technique has made an important contribution to the problem under investigation.
"Structure elucidation" is intended only if the crux of the paper is a structural elucidation or if a combination of several spectroscopic techniques were needed for conclusive solution of the structure.
An attempt has been made to avoid synonyms and to select more general concepts rather than specialized terms. Thus the term "double-decker complexes" is excluded in favor of "sandwich complexes". See also points 3 and 4 in these guidelines.
Enzymes should be assigned to one of the six main enzyme classes (hydrolases, isomerases, ligases, lyases, oxidoreductases, transferases).
This list is a "living" catalogue, flexible enough to absorb new developments in chemistry. We therefore welcome all suggestions from our readers and authors that might improve its user-friendliness.
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