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On the characterization of γ-graphyne

Nature Synthesis (2024)Cite this article

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The Original Article was published on 09 May 2022

arising from Y. Hu et al. Nature Synthesis https://doi.org/10.1038/s44160-022-00068-7 (2022)

The Article1 by Zhang, Zhao and co-workers describes a purported synthesis of γ-graphyne, an sp–sp2-hybridized carbon allotrope2, via alkyne metathesis. We argue that the characterization of the material reported is inconsistent with the postulated structure of bulk γ-graphyne. In our opinion, the primary claim of the Article, successful synthesis of γ-graphyne, should be re-evaluated.

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Fig. 1: Simulated electron diffraction and WAXS patterns for multilayer γ-graphyne.
Fig. 2: Comparison of HRTEM images of carbon materials.

Data availability

The data supporting the findings of this study are available within the paper and its Supplementary Information.

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Acknowledgements

We thank the authors of ref. 1 for providing their VASP input files. Funding from the US Department of Energy (grant number DE-SC0022100) and the National Science Foundation (GFRP award 1451075 to W.B.M.) is acknowledged with thanks.

Author information

Authors and Affiliations

  1. Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, USA

    William B. Martin & Valentin O. Rodionov

  2. Department of Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, USA

    Robert E. Warburton

  3. Department of Chemistry, Case Western Reserve University, Cleveland, OH, USA

    Shane M. Parker

Authors
  1. William B. Martin
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  2. Robert E. Warburton
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  3. Shane M. Parker
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  4. Valentin O. Rodionov
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Contributions

V.O.R., W.B.M. and S.M.P. conceptualized the idea and led the project. W.B.M., S.M.P. and R.E.W. performed the modelling. V.O.R., W.B.M., S.M.P. and R.E.W. interpreted the results and wrote the paper.

Corresponding author

Correspondence to Valentin O. Rodionov.

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The authors declare no competing interests.

Peer review

Peer review information

Nature Synthesis thanks Jean-François Morin and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.

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Supplementary information

Supplementary Information

Supplementary Figs. 1–4, Table 1 and Discussion.

Supplementary Data 1

Computational data. TURBOMOLE and VASP input and output files.

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Martin, W.B., Warburton, R.E., Parker, S.M. et al. On the characterization of γ-graphyne. Nat. Synth (2024). https://doi.org/10.1038/s44160-024-00642-1

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