Halogen bonding: Recent advances

被引:292
作者
Fourmigue, Marc [1 ]
机构
[1] Univ Rennes 1, UMR CNRS 6226, F-35042 Rennes, France
关键词
Halogen bond; Hydrogen bond; Crystal engineering; Crystallography; Molecular materials; EXPERIMENTAL ELECTRON-DENSITY; RADICAL-CATION SALTS; TRANS-CINNAMIC ACIDS; LIQUID-CRYSTALS; HYDROGEN-BONDS; MOLECULAR CONDUCTORS; MIXED-VALENCE; X-RAY; 90; K; COMPLEXES;
D O I
10.1016/j.cossms.2009.05.001
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Halogen bonding (XB), as a directional interaction between covalently bound halogen atoms (XB donor) and Lewis bases (A, XB acceptor), has been recently intensively investigated as a powerful tool in crystal engineering. After a short review on the origin and general features of halogen bonding, current developments towards (i) the elaboration of three-dimensional networks, (ii) the interaction with anionic XB acceptors, (iii) its identification in biological systems and (iv) the formation of liquid crystal phases will be described. Theoretical analyses, statistical studies and experimental electron density determinations converge to describe halogen bonding as a relatively weak structure directing tool, when compared with hydrogen bonding. However, when the halogen atom is strongly activated as in iodoperfluorinated molecules or cationic aromatic systems can halogen bonding act as an efficient and reliable structure directing tool. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:36 / 45
页数:10
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