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High‐Nuclearity Chromium–Nickel–Cyanide Clusters: An Open Cr 8 Ni 5 (CN) 24 Cage and a C 3 ‐Symmetric Cr 10 Ni 9 (CN) 42 Cluster Incorporating Three Forms of Cyanonickelate
Author(s) -
Sokol Jennifer J.,
Shores Matthew P.,
Long Jeffrey R.
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010105)40:1<236::aid-anie236>3.0.co;2-c
Subject(s) - cyanide , nickel , chromium , cluster (spacecraft) , chemistry , crystallography , yield (engineering) , square pyramidal molecular geometry , cage , trigonal bipyramidal molecular geometry , metal , stereochemistry , materials science , inorganic chemistry , crystal structure , combinatorics , mathematics , organic chemistry , metallurgy , computer science , programming language
Unprecedented geometries are displayed by two chromium–nickel–cyanide clusters that have recently been synthesized. [(Me 3 tacn) 8 Cr 8 Ni 5 (CN) 24 ] 10+ exhibits a face‐centered cubic structure with a Ni 2+ ion missing from one face. This species reacts with [Ni(CN) 4 ] 2− to yield [(Me 3 tacn) 10 Cr 10 Ni 9 (CN) 42 ] 6+ (shown in the picture), incorporating square‐pyramidal and trigonal‐bipyramidal [Ni(CN) 5 ] 3− and square‐planar [Ni(CN) 4 ] 2− units in the largest metal–cyanide cluster reported to date. Me 3 tacn= N , N ′, N ″‐trimethyl‐1,4,7‐triazacyclononane.