| GUI: Olex2[1] Structure refinement: SHELXL[2] |
案例来源:New J. Chem. 2024, DOI[3]:10.1039/d4nj02131b. CCDC[4]: 2353121. | | Q: Some structures report spurious bonds, such as Distance (Yb1-C14): 2.990. Please make sure that only real bonds will appear in the CIF bond table. A: This is a kind of π-M bond as η-mode. Similar distances can be found in the literatures (J. Organomet. Chem. 1992, 429, 27-39; Proc. Natl. Acad. Sci. U. S. A. 2006, 103, 12678-12683. Dalton Trans. 2014, 43, 2521-2533; Chem. Eur. J. 2020, 26, 16098-16110). | 问:某些结构报道了可疑的键,例如距离(Yb1-C14):2.990。请确保仅有真实键出现在CIF键表中。 答:这是一种η模式的π-M键。相似的距离可见于一些文献(J. Organomet. Chem. 1992, 429, 27-39; Proc. Natl. Acad. Sci. U. S. A. 2006, 103, 12678-12683. Dalton Trans. 2014, 43, 2521-2533; Chem. Eur. J. 2020, 26, 16098-16110)。 |
审稿人认为如图1所示的Yb1‒C14键键长太长,不是真实键,因此希望将删除。 ▲图1 审稿人指的键 不过,作者认为这里是种η模式的π-M键(C2=C14→Yb1),如图2所示,因此并未将其删除,并给出了一些文献作为支持。 ▲图2 具体结构 相关视频: 晶体数据审稿意见-报道真实键:https://www.bilibili.com/video/BV1QM4m127UV | [1] Dolomanov, O. V.; Bourhis, L. J.; Gildea, R. J.; Howard, J. A. K.; Puschmann, H. OLEX2: A Complete Structure Solution, Refinement and Analysis Program. J. Appl. Cryst. 2009, 42, 339–341. DOI: 10.1107/S0021889808042726. [2] (a) Sheldrick, G. M. SHELXL-2019/3, Program for Crystal Structure Refinement, University of Göttingen, Germany, 2019. (b) Sheldrick, G. M. A Short History of SHELX. Acta Cryst. 2008, A64, 112–122. DOI: 10.1107/S0108767307043930. (c) Sheldrick, G. M. Crystal Structure Refinement with SHELXL. Acta Cryst. 2015, C71, 3–8. DOI: 10.1107/S2053229614024218. (d) Lübben, J.; Wandtke, C. M.; Hübschle, C. B.; Ruf, M.; Sheldrick, G. M.; Dittrich, B. Aspherical scattering factors for SHELXL – model, implementation and application. Acta Cryst. 2019, A75, 50–62. DOI: 10.1107/S2053273318013840. [4] (a) Allen, F. H. The Cambridge Structural Database: a quarter of a million crystal structures and rising. Acta Cryst. 2002, B58, 380–388. DOI: 10.1107/S0108768102003890. (b) Allen, F. H. The Cambridge Structural Database: a quarter of a million crystal structures and rising. Acta Cryst. 2016, B72, 171–179. DOI: 10.1107/S2052520616003954. |
声明:本文仅代表个人观点,笔者学识有限,资料整理过程中可能存在疏漏错误,请不吝指正。 |
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