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Published on: December 29, 2016
Dimeric polybismuth heteroanion of [Rh@Bi10(RhCO)5]2- constructed using Bi10-bowl and square pyramidal Rh@(Rh-CO)5
Yipeng Zang1,2, Yueyue Wang1,2, Ruili Sang1
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. xli@fjirsm.ac.cn.
Abstract:
Redox reaction of the monovalent Rh2(CO)4Cl2 and Bi (n = 2, 3) from K5Bi4 in ethylenediamine (en) solution produced the decabismuthide-hexarhodium dianion [Rh@Bi10(RhCO)5]2- (1a) wherein a novel Bi10-bowl was constructed from oxidized 2Bi3/2Bi2 open triangles/dimers, which was stabilized by strong bonding to a reduced Rh@(RhCO)5 square pyramid. Two 1a dianons are held together by weak interactions (van der Waals forces and spatial resistance) to form a dimer [Rh@Bi10(RhCO)5]24- (1). The structure and bonding of the novel polybismuthide heteroanion 1 are discussed.
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