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Polyhedral Bismuth Polycations Coordinating Gold(I) with Varied Hapticity in a Homoleptic Heavy‐Metal Cluster
Author(s) -
Müller Ulrike,
Isaeva Anna,
Richter Janine,
Knies Maximilian,
Ruck Michael
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201600637
Subject(s) - chemistry , bismuth , homoleptic , monoclinic crystal system , ionic liquid , metal , crystallography , cluster (spacecraft) , inorganic chemistry , atom (system on chip) , crystal structure , organic chemistry , catalysis , computer science , programming language , embedded system
Shiny black, air‐sensitive crystals of [Au(Bi 8 ) 2 ](AlCl 4 ) 5 were obtained from the reaction of AuCl, BiCl 3 , and bismuth in the ionic liquid [BMIm]Cl · 4AlCl 3 (BMIm = 1‐ n ‐butyl‐3‐methylimidazolium) at 180 °C. [Au(Bi 8 ) 2 ](AlCl 4 ) 5 crystallizes in the monoclinic space group P 2 1 / n . In the heavy‐metal cluster [Au(Bi 8 ) 2 ] 5+ , two square‐antiprismatic Bi 8 2+ polycations coordinate the gold(I) atom in η 2 ‐ and η 4 ‐mode, respectively. Quantum chemical calculations demonstrate that both Bi 8 2+ polycations involve skeletal electrons for the donor bonding, which causes a widening of Bi–Bi distances compared with those in free Bi 8 2+ .
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