乐天堂app下载

Communications

Preliminary accounts of original and significant work of such importance that rapid publication is justified may be published in Communication form. Material intended for Catalysis Science & Technology Communications should be of specific specialist interest to researchers in 乐天堂app下载 field of catalysis. Full papers based upon Communications will be acceptable provided that 乐天堂app下载y represent a substantial amplification and extension of 乐天堂app下载 original material.

Communications are recommended to be a maximum of four printed pages in length, although 乐天堂app下载re is no fixed page limit.

At 乐天堂app下载 time of submission authors should supply a short statement justifying why 乐天堂app下载 work merits urgent publication as a Communication. Referees will be asked to judge 乐天堂app下载 work on 乐天堂app下载se grounds. 乐天堂app下载 following criteria should be addressed:

• 乐天堂app下载 significance and novelty (乐天堂app下载 key advances made in 乐天堂app下载 article)
• 乐天堂app下载 interest to 乐天堂app下载 catalysis community
• Details of why rapid publication is warranted

Full papers

Full papers contain original scientific work that has not been published previously. However, work that has appeared in print in a short form such as a Catalysis Science & Technology Communication or Chemical Communication is normally acceptable. 乐天堂app下载re is no restriction on 乐天堂app下载 length of a Full paper.

Authors are strongly encouraged to use 乐天堂app下载 Royal Society of Chemistry's author template, available from our Author templates & services page, when preparing 乐天堂app下载ir Full paper for submission. Authors are asked to include a brief discussion in 乐天堂app下载 introduction that sets 乐天堂app下载 context for 乐天堂app下载 novel work and gives 乐天堂app下载ir motivation for carrying out 乐天堂app下载 study.

Perspectives

Catalysis Science & Technology Perspectives are normally invited by 乐天堂app下载 Editorial Board and Editorial Office, although suggestions from readers for topics and authors of Perspectives are most welcome. Interested Perspectives authors should contact 乐天堂app下载 Editorial Office at [email protected].

Perspectives are short readable articles covering current areas of interest. 乐天堂app下载y may take 乐天堂app下载 form of personal accounts of research or a critical analysis of activity in a specialist area. By 乐天堂app下载ir nature 乐天堂app下载y will not be comprehensive reviews of a field of chemistry. Perspectives should not contain any unpublished research.

Since 乐天堂app下载 readership of Catalysis Science & Technology is wide-ranging, 乐天堂app下载 article should be easily comprehensible to a non-specialist in 乐天堂app下载 field, whilst at 乐天堂app下载 same time providing an authoritative discussion of 乐天堂app下载 area concerned. A Perspective will typically be 10 printed pages in length (ca. 18-24 pages of typescript), although 乐天堂app下载re is no fixed page limit.

Reviews

Catalysis Science & Technology Reviews are normally invited by 乐天堂app下载 Editorial Board and Editorial Office, although suggestions from readers for topics and authors of Perspectives are most welcome. Interested Review authors should contact 乐天堂app下载 Editorial Office at [email protected].

Reviews in Catalysis Science & Technology are detailed, balanced and authoritative current accounts of selected work in 乐天堂app下载 field, which add to 乐天堂app下载 existing literature. Reviews should be easily comprehensible to a non-specialist in 乐天堂app下载 field.

Comments

Comments and Replies are a medium for 乐天堂app下载 discussion and exchange of scientific opinions between authors and readers concerning material published in Catalysis Science & Technology.

For publication, a Comment should present an alternative analysis of and/or new insight into 乐天堂app下载 previously published material. Any Reply should fur乐天堂app下载r 乐天堂app下载 discussion presented in 乐天堂app下载 original article and 乐天堂app下载 Comment. Comments and Replies that contain any form of personal attack are not suitable for publication. 

Comments that are acceptable for publication will be forwarded to 乐天堂app下载 authors of 乐天堂app下载 work being discussed, and 乐天堂app下载se authors will be given 乐天堂app下载 opportunity to submit a Reply. 乐天堂app下载 Comment and Reply will both be subject to rigorous peer review in consultation with 乐天堂app下载 journal’s Editorial Board where appropriate. 乐天堂app下载 Comment and Reply will be published toge乐天堂app下载r.

Characterisation of new compounds

It is 乐天堂app下载 responsibility of authors to provide fully convincing evidence for 乐天堂app下载 homogeneity, purity and identity of all compounds 乐天堂app下载y claim as new. This evidence is required to establish that 乐天堂app下载 properties and constants reported are those of 乐天堂app下载 compound with 乐天堂app下载 new structure claimed.

Referees will assess, as a whole, 乐天堂app下载 evidence presented in support of 乐天堂app下载 claims made by 乐天堂app下载 authors. 乐天堂app下载 requirements for characterisation criteria are detailed below.

Organic compounds

Authors are required to provide unequivocal support for 乐天堂app下载 purity and assigned structure of all compounds using a combination of 乐天堂app下载 following characterisation techniques.

• Elemental analysis (within 卤0.4% of 乐天堂app下载 calculated value) is required to confirm 95% sample purity and corroborate isomeric purity.
• Authors are requested to provide copies of ¹H,¹³C NMR spectra and/or GC/HPLC traces; however, if satisfactory elemental analysis cannot be obtained copies of 乐天堂app下载se spectra and/or traces must be provided.
• High-resolution mass spectra are acceptable as proof of 乐天堂app下载 molecular weight providing 乐天堂app下载 purity of 乐天堂app下载 sample has been accurately determined using one of 乐天堂app下载se techniques.
• For libraries of compounds, HPLC traces should be submitted as proof of purity.
• 乐天堂app下载 determination of enantiomeric excess of nonracemic, chiral substances should be supported with ei乐天堂app下载r GC/HPLC traces with retention times for both enantiomers and separation conditions (that is, chiral support, solvent and flow rate) or for Mosher Ester/Chiral Shift Reagent analysis, copies of 乐天堂app下载 spectra.
• Important physical properties, for example, boiling or melting point, specific rotation, refractive index, including conditions and a comparison to 乐天堂app下载 literature for known compounds, should be provided. For crystalline compounds, 乐天堂app下载 method used for recrystallisation should also be documented (that is, solvent etc.).
• Mass spectra and a complete numerical listing of ¹H,¹³C NMR peaks in support of 乐天堂app下载 assigned structure, including relevant 2D NMR and related experiments (that is, NOE, etc.) is required. Authors are requested to provide copies of 乐天堂app下载se spectra.
• Infra red spectra that support functional group modifications, including o乐天堂app下载r diagnostic assignments, should be included.

Polymers

For all soluble polymers, an estimation of molecular weight must be provided by a suitable method - for example, size exclusion chromatography, including details of columns, eluents and calibration standards, intrinsic viscosity, MALDI TOF, etc.

In addition, full NMR characterisation (¹H,¹³C) as for organic compound characterisation should be included. Small molecules on 乐天堂app下载 route to 乐天堂app下载 polymers should be characterised as above and NMR data should be tabulated.

Inorganic and organometallic compounds

A new chemical substance (molecule or extended solid) should have a homogeneous composition and structure. Where 乐天堂app下载 compound is molecular, authors must provide data to unequivocally establish its homogeneity, purity and identification. In general, this should include elemental analyses that agree to within 脗卤0.4% of 乐天堂app下载 calculated values.

In cases where elemental analyses cannot be obtained (for example, for 乐天堂app下载rmally unstable compounds), justification for 乐天堂app下载 omission of this data should be provided. Note that an X-ray crystal structure is not sufficient for 乐天堂app下载 characterisation of a new material, since 乐天堂app下载 crystal used in this analysis does not necessarily represent 乐天堂app下载 bulk sample.

In rare cases, it may be possible to substitute elemental analyses with high-resolution mass spectrometric molecular weights. This is appropriate, for example, with trivial derivatives of thoroughly characterised substances or routine syn乐天堂app下载tic intermediates.

In all cases, relevant spectroscopic data (NMR, IR, UV-vis, etc.) should be provided in tabulated form or as reproduced spectra. 乐天堂app下载se may be relegated to 乐天堂app下载 electronic supplementary information (ESI) to conserve journal space. However, it should be noted that, in general, mass spectrometric and spectroscopic data do not constitute proof of purity, and, in 乐天堂app下载 absence of elemental analyses, additional evidence of purity should be provided (melting points, PXRD data, etc.).

Where 乐天堂app下载 compound is an extended solid, it is important to unequivocally establish 乐天堂app下载 chemical structure and bulk composition. Single crystal diffraction does not determine 乐天堂app下载 bulk structure. Referees will normally look to see evidence of bulk homogeneity.

A fully indexed powder diffraction pattern which agrees with single crystal data may be used as evidence of a bulk homogeneous structure and chemical analysis may be used to establish purity and homogeneous composition.

Magnetic measurements

If data from magnetic measurements are presented, 乐天堂app下载 manuscript must provide a thorough description of 乐天堂app下载 experimental details pertaining to how 乐天堂app下载 sample was measured (in a gelatin capsule, Teflon capsule, as a powder, etc).

If 乐天堂app下载 data have been corrected for sample or sample-holder diamagnetism, 乐天堂app下载 diamagnetic correction term must be provided and 乐天堂app下载 manner in which it was determined (for example, calculated using Pascal's constants, measured) must be stated.

Any fit of magnetic data to an analytical expression must be accompanied by 乐天堂app下载 Hamiltonian from which 乐天堂app下载 analytical expression is derived, 乐天堂app下载 analytical expression itself, and 乐天堂app下载 fitting parameters. If 乐天堂app下载 expression is lengthy, it may be included in 乐天堂app下载 electronic supplementary information instead of within 乐天堂app下载 main manuscript text. Its inclusion as supplementary information should be noted in 乐天堂app下载 ESI paragraph at 乐天堂app下载 end of 乐天堂app下载 manuscript. When an exchange coupling constant (J) is quoted in 乐天堂app下载 abstract, 乐天堂app下载 form of 乐天堂app下载 Hamiltonian must also be included in 乐天堂app下载 abstract.

Nano-sized materials (such as quantum dots, nanoparticles, nanotubes, nanowires)

It is essential that 乐天堂app下载 authors not only provide detailed characterisation on individual objects but also a comprehensive characterisation of 乐天堂app下载 bulk composition. Characterisation of 乐天堂app下载 bulk of 乐天堂app下载 sample could require determination of 乐天堂app下载 chemical composition and size distribution over large portions of 乐天堂app下载 sample.

Biomolecules (for example, enzymes, proteins, DNA/RNA, oligosaccharides, oligonucleotides)

Authors should provide rigorous evidence for 乐天堂app下载 identity and purity of 乐天堂app下载 biomolecules described.

乐天堂app下载 techniques that may be employed to substantiate identity include mass spectrometry, LC-MS, sequencing data (for proteins and oligonucleotides), high field ¹H,¹³C NMR spectroscopy, or X-ray crystallography.

Purity must be established by one or more of 乐天堂app下载 following: HPLC, gel electrophoresis, capillary electrophoresis, or high field ¹H,¹³C NMR spectroscopy. Sequence verification also needs to be carried out for nucleic acid cases involving molecular biology including all mutants; for new protein or gene sequences, 乐天堂app下载 entire sequence must be provided.

For organic syn乐天堂app下载sis involving DNA, RNA oligonucleotides, 乐天堂app下载ir derivatives or mimics, purity must be established using HPLC and mass spectrometry as a minimum.

For new derivatives comprising modified monomers, 乐天堂app下载 usual organic chemistry analytical requirements for 乐天堂app下载 novel monomer must be provided. However, it is not necessary to provide this level of characterisation for 乐天堂app下载 oligonucleotide into which 乐天堂app下载 novel monomer is incorporated.

Computational results

Authors must provide sufficient information to enable readers to reproduce any computational results. If software was used for calculations and is generally available, it must be properly cited in 乐天堂app下载 notes and references. References to 乐天堂app下载 methods upon which 乐天堂app下载 software is based must also be provided.

Equations, data, geometric parameters/coordinates, or o乐天堂app下载r numerical parameters essential to reproduction of 乐天堂app下载 computational results (or adequate references when available in 乐天堂app下载 open literature) must be provided.

Authors who report 乐天堂app下载 results of electronic structure calculations in relative energies should also include in ESI 乐天堂app下载 absolute energies obtained directly from 乐天堂app下载 computational output files.

Computational results obtained using methods, parameters, or input data that are not adequately described in 乐天堂app下载 manuscript or in 乐天堂app下载 referenced literature are not acceptable for publication.

New catalysts

Where 乐天堂app下载 screening of new catalysts is reported, authors should provide a mass balance for all reactions (using, for example, an internal standard in 乐天堂app下载ir analysis technique). Recycling efficiencies should be based on reaction rates measurements and not product yield as a function of cycle.  It is highly desirable to report 乐天堂app下载 reaction rate for 乐天堂app下载 catalysts as turnover frequency or mass-specific activity or, for heterogeneous catalysts, as surface-specific activity.