Evidence for “holey graphyne” is questionable

石墨 计算机科学 业务 材料科学 纳米技术 石墨烯
作者
Valentin O. Rodionov
出处
期刊:Matter [Elsevier]
卷期号:7 (3): 752-754
标识
DOI:10.1016/j.matt.2024.01.018
摘要

Richard F. Heck, Ei-ichi Negishi, and Akira Suzuki were awarded the 2010 Nobel Prize in Chemistry for their pioneering work on palladium-catalyzed cross-couplings. This class of reactions has vastly expanded the possibilities for chemists to create bonds involving low-reactivity sp2 carbon sites. A recent article 1 Liu X. Cho S.M. Lin S. Chen Z. Choi W. Kim Y.-M. Yun E. Baek E.H. Ryu D.H. Lee H. Constructing two-dimensional holey graphyne with unusual annulative π-extension. Matter. 2022; 5: 2306-2318https://doi.org/10.1016/j.matt.2022.04.033 Abstract Full Text Full Text PDF Scopus (37) Google Scholar by Liu et al. would appear to transcend the achievement of Heck, Negishi, and Suzuki. The authors claim to have synthesized an allotrope of carbon ("holey graphyne" or "HGY") incorporating highly strained cyclooctadiyne rings. Astonishingly, the purported synthesis is realized through a copper-mediated reaction that surpasses all known palladium-catalyzed cross-couplings in fidelity and efficiency. Here, I explain why the main findings of this article cannot possibly be correct. Our accompanying replication study confirms that the synthesis of holey graphyne indeed fails to reproduce. Response to "Evidence for 'holey graphyne' is questionable"Liu et al.MatterMarch 06, 2024In BriefWe thank Valentin O. Rodionov et al. for their interest in our holey graphyne (HGY) paper and for giving comments on the organic reaction mechanism and related modes of reaction, which greatly help researchers gain further insights into these types of novel carbon materials with unusual sp bonds. In response, we have carefully considered the reaction mechanism and conducted all related modes of reaction. Below, please find our explanations and clarifications. Full-Text PDF
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