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Comments on the Molecular Structure and Bonding In [W 4 Cl(O)(O i Pr) 9 ] and [W 4 (O)(O i Pr) 10 ]. Analogies with Tetranuclear Carbonyl Clusters
Author(s) -
Chisholm Malcolm H.,
Folting Kirsten,
Hammond Charles E.,
Huffman John C.,
Martin James D.
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198913681
Subject(s) - alkoxide , crystallography , cluster (spacecraft) , electron counting , transition metal , chemistry , electron localization function , stereochemistry , electron , physics , catalysis , computer science , programming language , biochemistry , quantum mechanics
Discovery of the 12‐electron clusters 1 and 2 has afforded insights into the complementary bonding in clusters of early and late transition metals with alkoxide and carbonyl ligands, respectively. In 1 , a WCl(O i Pr) unit caps a triangular W 3 fragment; similarly, in cluster 3 , PtL 2 caps an Os 3 triangle. Compared with the d 10 PtL 2 fragment, however, the d 4 WCl(O i Pr) unit is a stronger electron acceptor. This leads to marked changes in the MM bond in the alkoxide/carbonyl clusters of the early/late transition metals.