Aromatic Metal-Centered Monocyclic Boron Rings: Co©B8- and Ru©B9-

被引:205
作者
Romanescu, Constantin [2 ]
Galeev, Timur R. [1 ]
Li, Wei-Li [2 ]
Boldyrev, Alexander I. [1 ]
Wang, Lai-Sheng [2 ]
机构
[1] Utah State Univ, Dept Chem & Biochem, Logan, UT 84322 USA
[2] Brown Univ, Dept Chem, Providence, RI 02912 USA
基金
美国国家科学基金会;
关键词
aromaticity; boron; cluster compounds; coordination modes; transition metals; PLANAR CARBON; AB-INITIO; CLUSTERS; TRANSITION; CATIONS; COBALT; IRON;
D O I
10.1002/anie.201104166
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Perfect symmetry: Photoelectron spectroscopy and theoretical calculations show that the B8 and B9 rings are stabilized by the metal atoms in CoB8- and RuB9-, which possess D8h and D9h symmetry, respectively (see picture). The bonding between the metal atom and the boron ring is described by six delocalized σ electrons and six delocalized π electrons, which result in double aromaticity. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:9334 / 9337
页数:4
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