4.7 Article

Dimeric polybismuth heteroanion of [Rh@Bi10(RhCO)5]2- constructed using Bi10-bowl and square pyramidal Rh@(Rh-CO)5

Journal

DALTON TRANSACTIONS
Volume 52, Issue 43, Pages 15935-15939

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d3dt02402d

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The redox reaction of monovalent Rh-2(CO)(4)Cl(2) and Bi-n(n-) (n = 2, 3) in ethylenediamine solution led to the formation of a decabismuthide-hexarhodium dianion [Rh@Bi-10(RhCO)(5)](2-) (1a), where a novel Bi10-bowl was constructed from oxidized 2Bi(3)/2Bi(2) open triangles/dimers. The structure of 1a was stabilized by strong bonding to a reduced Rh@(RhCO)(5) square pyramid. Weak interactions between two 1a dianions formed a dimer [Rh@Bi-10(RhCO)(5)](2)(4-) (1). The structure and bonding of the novel polybismuthide heteroanion 1 are discussed.
Redox reaction of the monovalent Rh-2(CO)(4)Cl(2 )and Bi-n(n-) (n = 2, 3) from K5Bi4 in ethylenediamine (en) solution produced the decabismuthide-hexarhodium dianion [Rh@Bi-10(RhCO)(5)](2-) (1a) wherein a novel Bi10-bowl was constructed from oxidized 2Bi(3)/2Bi(2) 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@Bi-10(RhCO)(5)](2)(4-) (1). The structure and bonding of the novel polybismuthide heteroanion 1 are discussed.

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