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Cage Opening of a Carborane Ligand by Metal Cluster Complexes
Author(s) -
Adams Richard D.,
Kiprotich Joseph,
Peryshkov Dmitry V.,
Wong Yuen Onn
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201601075
Subject(s) - carborane , cage , cluster (spacecraft) , ligand (biochemistry) , chemistry , metal , crystallography , virology , stereochemistry , structural engineering , biology , computer science , engineering , receptor , organic chemistry , biochemistry , programming language
The reaction of Os 3 (CO) 10 (NCMe) 2 with closo‐o‐C 2 B 10 H 10 has yielded two interconvertible isomers Os 3 (CO) 9 (μ 3 ‐4,5,9‐C 2 B 10 H 8 )(μ‐H) 2 ( 1 a ) and Os 3 (CO) 9 (μ 3 ‐3,4,8‐C 2 B 10 H 8 )(μ‐H) 2 ( 1 b ) formed by the loss of the two NCMe ligands and one CO ligand from the Os 3 cluster. Two BH bonds of the o ‐C 2 B 10 H 10 were activated in its addition to the osmium cluster. A second triosmium cluster was added to the 1 a / 1 b mixture to yield the complex Os 3 (CO) 9 (μ‐H) 2 (μ 3 ‐4,5,9‐μ 3 ‐7,11,12‐C 2 B 10 H 7 )Os 3 (CO) 9 (μ‐H) 3 ( 2 ) that contains two triosmium triangles attached to the same carborane cage. When heated, 2 was transformed to the complex Os 3 (CO) 9 (μ‐H)(μ 3 ‐3,4,8‐μ 3 ‐7,11,12‐C 2 B 10 H 8 )Os 3 (CO) 9 (μ‐H) ( 3 ) by a novel opening of the carborane cage with loss of H 2 .