Please note: we may automatically decline publication when a (co)author has already submitted 3 manuscripts in the past year.

Instructions for Authors

• Scope
• Preparation of the manuscript
  • Submission elements
  • Article template and general instructions
• Composition recommendations
  • Language
  • Mandatory elements
  • Optional elements
  • References
  • Math formulae
  • Illustrations
  • Tables
  • Conventions and abbreviations
• Open Data Policy
  • Source files
  • Underlying data
  • Supplementary materials
• Copyright
  • Policy of assignment of rights
  • Reuse policy
• Ethical Code
• Printing

Scope

Comptes Rendus Chimie covers the breadth of the chemical sciences, including interdisciplinary topics where chemistry plays a central role. The journal publishes contributions reporting original research, reviews and historic chronicles. Articles should describe novel and important results of high general interest or of outstanding specialized interest.

• Research articles should report and discuss concisely new results and include an experimental section. The use of Electronic Supporting Information (ESI) is encouraged, this material will be evaluated by the referees.
• Preliminary communications should report urgent results from across the chemical sciences.
• Review articles should provide comprehensive, authoritative and critical reviews of important topics where chemistry plays a central role. They should be of interest not only to experts in the field, but also appeal to a broad chemistry readership. The submission of concise reviews is also welcome: they should place the topic in the context of earlier work, evaluate the present state-of-art, open perspectives and be attractive to nonexperts in addition to specialists in the field.
• History of science and ideas articles and tributes should focus on the history of a particular scientific field and/or discovery, or on the life of a deceased researcher.

Preparation of the manuscript

Authors can submit their manuscript in Word, OpenOffice or TeX (TeX is preferred wherever possible).

All LaTeX submissions must include at least 3 elements:

• The full text of the article in TeX format (source file) ;
• The full text of the article in PDF format (compiled file);
• The bibliography of the article in BIB format.

Word or OpenOffice submissions must include 2 elements:

• The full text of the article in Word / OpenOffice format (source file) ;
• The full text of the article in PDF format (compiled file).

Any submission that does not include these elements may be rejected without evaluation.

In addition to these mandatory files, please remember to include :

• Any additional material (also to be provided in several files: TeX or Word source file, PDF compilation, and BIB bibliography for TeX material if applicable) ;
• Source files of all your illustrations (see below);
• And, in general, all the source files needed to compile the text of your article.

If you have forgotten any files during your initial submission:

• If the missing files are numerous and/or significantly change the content of the submission, please abandon the initial submission and make a new submission;
• Otherwise, please open a discussion in OJS with the editor, attaching the file(s) and asking the editor to add them.

Article template and general instructions

Word Formats

Composition recommendations

Language

Contributions may be written in English (preferred) or French.

• If your article is written in French, providing a title, an abstract and keywords in French AND in English is mandatory;
• If your article is written in English:
  • Providing a title, abstract and keywords in English is mandatory
  • We would also be grateful if you could provide us with a French translation of your title, abstract and keywords. If this metadata in French is not provided by the authors, the editorial team will automatically translate the English metadata.

If neither English nor French is your mother tongue, please start by writing your article in your own language, then have it translated by a professional, or failing that, by automatic language processing software such as DeepL Translator or Google Translate. In all cases, please have your manuscript proofread by a native speaker or use a professional language editing service.

Authors are encouraged to write concisely.

Mandatory elements

Bibliographical information

This information is intended to ensure that your article is properly referenced (in databases and in future citations by other texts). It must include :

• A short but explicit title (please use colons ":" only to separate your title from any subtitle);
• The names of all the authors: 
  • giving their full first names,
  • including an asterisk after the name of the author to whom correspondence and proofs should be sent;
• Contact details for all authors:
  • professional e-mail address (it is essential to provide all these addresses in order to validate the submission of your manuscript),
  • affiliation (if necessary, remember to have these affiliations checked by your supervisory institution before your article is sent to our layout department),
  • full professional postal address for corresponding author only;
• 3 to 7 keywords describing the subject of your article, so that it can be better indexed in international databases. Please use American spelling in English, and avoid general and plural terms and multiple concepts ("and" or "of", for example, should be avoided);
• An abstract for your article, no longer than 250 words: please also avoid non-standard or uncommon abbreviations, but if they are essential, define them at the first mention in the abstract.

Please note that all this information must appear in the files submitted by the author and be entered (for the most part) in the journal's editorial software. In the event of discrepancies between the two sources, only the information entered in the editorial software will be taken into account.

Full text of the article

The body text of your article must be :

• double-spaced ;
• with numbered lines and pages;
• organised in clearly defined sections, numbered in Roman numerals and with their own headings:
• any sub-sections must also be numbered, explaining how they are arranged in the document: 1.1 (then 1.1.1, 1.1.2, etc.), 1.2, 1.3, etc.
• use this numbering for your internal cross-references (e.g. "see section 1.2.4") ;
•  including figures, illustrations, graphs and tables where you want them to appear in your article, each accompanied by a caption (see below).

Your article must include certain sections:

• Declaration of interests: if you have no conflict of interest to declare, please include the following statement: "The authors do not work for, advise, own shares in, or receive funds from any organisation that could benefit from this article, and have declared no affiliation other than their research organisations" ; 
• References: list of all bibliographical references included in your text (see below), excluding any other information (bibliographical or otherwise).

Optional elements

Bibliographic information

• Funding: indicate here, for each author concerned, the information relating to the funding specifically responsible for the results obtained (calls for projects and grants in particular), taking care to comply with the requirements of your funding body (e.g.: "This work has been supported by the European Research Council, as part of the Horizon Europe research programme - Grant Agreement n°[yyyy]. If the funding comes from a global grant (other than the funds allocated by the parent organisation in the ordinary course of research), simply indicate the name of the institute or organisation that provided the funding.
• Note: specify here whether your article is submitted at the invitation of the editorial committee, or if it is the result of a specific event (symposium, prize-giving ceremony, etc.).

Special sections in the text

• Acknowledgements: list here the people who provided you with help during your research (e.g. advice on your work, provision of data, spelling/typing correction, etc.). These acknowledgements should not be included on the title page, as a footnote to the title or otherwise, but collected in a separate section at the end of the article, before the references. They are distinct from specific funding information, which must appear in the bibliographic information.
• Dedication: a one-sentence dedication of the article may be included in a separate paragraph after the "Acknowledgements" section.
• Notes (endnotes or footnotes): present in the form of notes (numbered consecutively throughout the article) any additional information you would like readers to know, in particular to comment on certain references in the body of the text. Bibliographical information and the Declaration of interests, Acknowledgements, Dedication and References sections should not include notes of this type.

Additional files

• Translated version of the article: it is possible to accompany the text of your article with a translation in any language using Latin characters. This translation will not be peer-reviewed, but it will be put online at the same time as the article, and thus made citable. Remember to specify the names and affiliations (and ORCIDs if available) of all the authors of this translation: if they are not indicated, the translation will have the same authors as the original version. You can also distribute it on a preprint server such as ChemRxiv.
• Appendices: these will be posted online with the article as supplementary material. If you feel that they may be useful to readers in the form of full publications, feel free to put them online in a data repository such as Zenodo or on a preprint server such as ChemRxiv.

References

All articles submitted for publication in Comptes Rendus Chimie must be supported by reliable scientific sources. Manuscripts without bibliographical references will be rejected without evaluation.

In the body of the text

The sources underlying your article must all be mentioned in the body of your article, regardless of :

• when they were written or published ;
• their target audience (general public, amateurs, professionals, scientific community, etc.) ;
• their type (web page, journal article, book, conference proceedings, encyclopedia entry, dataset, image, source code, manuscript, archive document, etc.);
• their publication status (preprint, published article, etc.):
  • if the cited document has not yet been accepted for publication, please cite the publicly available preprint,
  • if the cited document has several versions (e.g. arXiv manuscripts, datasets, etc.), please specify which version you consulted at the time of writing,
  • if your article is intended for inclusion in a special issue of Comptes Rendus, please wait until all your bibliographical references have been accepted for publication before citing them;
• the language in which they were written.

Please also mention the exact source of figures and illustrations (if not originals). For any photograph or image reproduction, please mention the original archive or publication, in addition to the source of the image itself.

Instructions for presenting references in the body of the text:

• Enter the number of your reference in right square brackets, listing them sequentially as they appear in the text (autotext, fields, bookmarks, captions, cross-references, etc.);
• If you wish to cite several references at the same time, assign a number to each, and separate them with a semicolon. E.g.: [25; 26];
• If necessary, specify the exact pagination of the passage/figure you are referring to, bearing in mind that the overall pagination of the journal article or book chapter cited will appear in the final bibliography. E.g.: [42, p. 283];
• If you wish to add a bibliographical comment to your reference, present it in the form of a footnote or endnote.

Final bibliography

All your article's primary and secondary sources must be included in a single final bibliography (not organized into subsets).

Your bibliography should be limited to the references mentioned throughout the text: any additional comments may appear in your manuscript as footnotes or endnotes, but not in the bibliography itself.

Instructions for presenting references in the final bibliography :

• Arrange your references in alphabetical order of the first author's surname, then in chronological order;
• Be sure to provide as much bibliographical information as possible: authors, title of article, title and number of journal, date of publication, pagination, publisher and city of publication for books, etc...;
• If you can, include the precise identifiers (DOI, handle, ARK...) of the documents cited, as well as their URLs;
• Don't worry about formatting (bold, italics, etc.): formatting will be done when you prepare the proofs;
• Ensure that all references cited in the text (including in the captions of illustrations, graphs and tables) are included in the bibliography.

If you use bibliographic management software such as Zotero, feel free to submit your bibliography in .bib or .ris format at the same time as your article. If your article is written with TeX, submitting your .bib file is mandatory.

Examples of the layout to be used in the reference list:

• Article (all authors must be mentioned):
  [1] B. Cage, F.A. Cotton, N.S. Dalal, E.A. Hillard, B. Rakvin, C.M. Ramsey, EPR probing of bonding and spin localization of the doublet-quartet states in a spin-frustrated equilateral triangular lattice: Cu₃(O₂C₁₆H₂₃)₆·1.2 C₆H_12, C. R. Chimie 6 (2003) 39.
• Book:
  [2] P. Braunstein, L.A. Oro, P.R. Raithby (Eds.), Metal Clusters in Chemistry, Wiley-VCH, Weinheim, Germany, 1999, Vols. 1–3.
• Chapter in a book:
  [3] P.W. Jolly, G. Wilke, in: B. Cornils, W.A. Herrmann (Eds.), Applied Homogenous Catalysis with Organic Compounds 2, Wiley-VCH, Weinheim, 1996, p. 1024.

NB: Your bibliographic references will be reformatted by our editorial teams, so the examples above are not identical to the references you might find in our already published articles.

Math formulæ

Please:

• Submit mathematical equations as editable text, not images;
• Submit simple formulas, in-line, with normal text whenever possible;
• Use solidus (/) instead of a horizontal line for small fractional terms, e.g., X/Y;
• Place exponents and subscripts carefully - so write x₁ and not x1;
• Avoid ambiguous expressions such as 1/2x - so write either 1/(2x), or (1/2)x;
• Make sure that a given quantity is always designated by the same symbol in the same typeface - for example, a length L (written in italics) will not be called L elsewhere;
• Present variables in italics;
• Indicate the powers of e by exp.;
• Number consecutively all equations that are to be displayed separately from the text (if explicitly mentioned in the text).

Illustrations

General points

Please:

• Integrate your illustrations directly into your text and PDF files, in the best possible resolution (zoomed to 400%, your illustrations should not become blurred or pixelated);
• Label all your illustrations as figures and/or diagrams;
• Number your illustrations in Arabic numerals, in the order they appear in the article;
• Use consistent units and symbols between all illustrations and with the text;
• Use consistent lettering and dimensions for all original illustrations;
• Use Helvetica as the preferred font (if not available, use Arial, Courier, Times New Roman, Symbol or similar fonts) for text appearing in figures;
• Check that your illustrations will be adapted to a resizing on 75 mm width (single column), 160 mm for illustrations straddling two columns;
• Make sure that none of your illustrations exceed A4 size (210 x 297 mm);
• Ensure that photographs and halftones have good contrast;
• Make sure that the characters integrated in your illustrations remain legible even after reducing the size of the illustrations by 70%;
• Integrate the fonts used directly into your illustrations if the design software you use allows it;
• Provide a caption for each of your illustrations;
• Specify the exact source of your illustrations if they are not original works (citing the original work and any secondary works in which you have consulted reproductions, if necessary);
• Check that your illustrations are all cited in the body of the text.

Please use only royalty-free illustrations in your manuscript. If you wish to re-use an illustration protected by copyright (which may be the case for all images found on the internet using a search engine), please find out who the copyright holders are and obtain written authorisation to re-use it under a Creative Commons CC BY 4.0 license (see below).

If you also provide illustrations as separate files, please send them in the best possible resolution and choose image formats (JPEG, PNG, EPS, ChemDraw, Adobe Illustrator... - note that EPS format is not suitable for images containing text). When enlarged to 400%, your illustrations should not become blurred or pixelated.

Tables

Please:

• Use only one grid for each individual table, not one grid for each row;
• Align columns using tabs (not spaces) if your table does not have a grid;
• Number your tables in Roman numerals, in the order they appear in the article;
• Avoid vertical lines within tables;
• Accompany each table with a caption.

Conventions and abbreviations

They should be defined in brackets after their first mention in the text. Internationally accepted units and nomenclature must be used (ISO 31 and ISO 1000). Standard units of measurement and chemical symbols for elements may be used without definition in the manuscript.

Open data policy

Source files

Authors wishing to publish in Comptes Rendus Chimie are requested to provide all the files necessary for the formatting of their article in the most interoperable formats possible, in order to facilitate the work of the editors.

In order to encourage the free circulation of scientific knowledge, authors are strongly encouraged to accept the publication by Comptes Rendus Chimie of these source files, together with the editorialized files. The dissemination of figures, in particular, especially when made available in an interoperable format and in high quality resolution, is a strong commitment to more open and robust science.

Underlying Data

Research data includes all "materials in digital form, other than scientific publications, that are collected or produced in the course of scientific research activities and used as evidence in the research process, or that are commonly accepted by the scientific community as necessary to validate research findings and results" (source: EU Directive 2019/1024).

Authors wishing to publish in the Comptes Rendus Chimie are encouraged to make all data related to the research work they describe in their manuscripts, and in particular the data directly underlying the submitted articles, freely available.

To do so, Comptes Rendus Chimie strongly recommends that authors deposit their data in warehouses, i.e. databases specifically dedicated to the permanent preservation, enrichment and valorization of the materials they host. Datasets deposited in repositories are scientific productions that can be cited (in particular when they have a permanent identifier such as DOI), in the same way as a traditional publication.

It is recommended that authors release their data without embargo or after the shortest possible delay, in a way that allows their reuse, with an explicit link between the data and the underlying publication (reciprocal mention of the DOI). The journal encourages the provision of data under open licenses that allow their free reuse. Authors must use the licenses recommended by the repository where the data were deposited.

Reviewers of submitted articles may at any time request from authors the data underlying the results described. Failure to provide this data will result in the rejection of the submission.

NB: Research data should be as open as possible, but as closed as necessary. The Academy of Sciences and the editorial team of Comptes Rendus Chimie cannot be held responsible for any failure to respect the rights associated with the exploitation or dissemination of the data underlying the articles published by the journal. Authors are invited to inquire about any intellectual or industrial property issues that may arise with their data.

Special requirements for crystallographic data

The above recommendations concern all the data underlying the articles submitted to Comptes Rendus Chimie. Among these, manuscripts reporting crystal structures determined by X-ray diffraction must include a list of the principal bond lengths and angles. ORTEP drawings (except stereochemical diagrams) are also required (but may be placed in the supporting information if other software is used to prepare the structure view that appears in the text).

Before submitting a manuscript to Comptes Rendus Chimie, the correspondence author must have obtained the Checkcif report for each structure (free online Checkcif service provided by the International Union of Crystallography).

They should then deposit the crystal structure(s) in .cif format with the Cambridge Crystallographic Data Centre (CCDC) in Cambridge, UK, for structures containing at least one carbon atom, with the Fachinformationszentrum (FIZ) in Karlsruhe, Germany, for other structures. Do not submit .cif files with your manuscript, only the PDF of the Checkcif report.

For further information, please contact

• Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK (deposit@ccdc.cam.ac.uk);
• Fachinformationszentrum Karlsruhe, D-76344 Eggenstein-Leopoldshafen, Germany (crystdata@fiz-karlsruhe.de).

Please also include an adapted version of the following paragraph at the end of each relevant article:

"CCDC-*** contains the additional crystallographic data for this article. These data can be obtained free of charge from the [insert name and contact information of the depository institution and CSD accession number(s) here]."

Data Repositories

To select a trusted repository appropriate for your data type or disciplinary area, consult the re3data directory. Check that the chosen repository meets quality criteria.

In addition to the CCDC and FIZ mentioned above, you can find examples of trusted data warehouses in chemistry on the DATACC project website.

We should also mention Zenodo, a multidisciplinary data warehouse, supported by CERN and the European Commission. The data deposit is not moderated.

Supplementary material

Authors who wish to publish in the Comptes Rendus Chimie may attach to the full text of their submission additional files or material, independent of the body of the article but essential to its understanding. As this material [text, tables, diagrams, figures but not crystallographic data (CIF), see above] is subject to the peer review process, it must be included and clearly marked as "Supporting Information for Electronic Publication" when the article is submitted. To ensure that your material is directly usable, please make sure that each file does not exceed 50 MB.

However, for reasons of technical constraints, valuation, preservation and reuse, authors are strongly advised to deposit this additional material in dedicated repositories, rather than publishing it as an appendix to the articles.

Copyright

Policy of assignment of rights

By publishing in Comptes Rendus Chimie, authors grant the journal the right of first publication and distribution of the final published version (version of records or version of reference). This right is materialized by the signature of a contract of transfer of rights.

All articles in Comptes Rendus Chimie (including content published prior to 2020) are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits the journal to use and reproduce the articles and to create derivative works in any medium and format, including for commercial purposes.

Authors retain full intellectual property rights, and are free to enter into additional, separate contractual arrangements for the non-exclusive dissemination of the journal's version of their article (e.g., deposit in an open archive or publication in a book), subject to acknowledging the original publication of the article in Comptes Rendus Chimie.

Reuse of articles in their submitted and accepted versions

Submitted version (author's manuscript or preprint): any author who wishes to publish in Comptes Rendus Chimie is authorized to pre-publish his manuscript on a pre-publication server such as Open Research Europe, in an open archive such as HAL, or on any other website such as a laboratory website. The manuscript must be clearly identified as not yet peer-reviewed or accepted for publication, and not containing any modifications requested later.

If the author's manuscript is subsequently accepted for publication and then published by Comptes Rendus Chimie, the authors must indicate these changes in editorial status, provide a link to the journal and include in the manuscript record the DOI assigned to the final published version.

Accepted version (accepted author manuscript or postprint): any author whose manuscript has been accepted for publication in Comptes Rendus Chimie may publish the final version of his or her unedited text on a pre-publication server such as Open Research Europe, in an open archive such as HAL, or on any other website such as a laboratory website. The manuscript must be clearly identified as having been peer-reviewed, corrected following their requests and accepted in principle by the journal, with a link to the journal's website.

After publication by the Comptes Rendus Chimie, the article description should be modified to include the final DOI assigned to the final published version.

Published version (PDF editor or version of records): the CC BY 4.0 license under which the articles of Comptes Rendus Chimie are distributed authorizes its authors to deposit the published version of their work in an open archive such as HAL, or on any other website such as a laboratory website, provided that the DOI of the published article is included in the article's descriptive notice.

NB : for a deposit in HAL, you can select the option " Authorized editor files on an open archive ".

Choose a platform of self-archiving

To choose the preprint server, open archive or portal best suited to disseminate your author manuscripts, feel free to consult the Open Directory of Open Access Repositories (OpenDOAR), a service of JISC.

In addition, if you want your manuscript to be referenced by Europe PubMed Central, we recommend that you choose one of the preprint servers indexed by the database, including arXiv, bioRxiv, Open Research Europe or Preprints.org.

If you have any questions about the dissemination of your work, please do not hesitate to contact us.

Ethical Code

By submitting an article to Comptes Rendus Chimie, authors agree to abide by the journal's Code of Ethics and Good Practices.

Print on demand

If you would like to print hard copies of annual volumes or thematic issues of the Comptes Rendus Chimie, click here to get more information.