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Eight‐Coordinate Metal Carbonyls Containing Only Monodentate Ligands. Syntheses and Structural Characterization of [ n Pr 4 N] 2 [(Ph 3 Sn) 4 M(Co) 4 ], M = Zr, Hf
Author(s) -
Ellis John E.,
Chi KaiMing,
DiMaio AnthonyJ.,
Frerichs Scott R.,
Stenzel Jason R.,
Rheingold Arnold L.,
Haggerty Brian S.
Publication year - 1991
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.199101941
Subject(s) - denticity , characterization (materials science) , metal , crystallography , chemistry , stereochemistry , materials science , crystal structure , nanotechnology , organic chemistry
Two interpenetrating tetrahedra of carbonyl and triphenylstannyl groups form the highly symmetric dodecahedral coordination sphere of the zirconium atom in the complex dianion [(Ph 3 Sn) 4 Zr(CO) 4 ] 2⊖ (structure right with the phenyl groups of the Ph 3 Sn substituents omitted). The thermal stability of this highly reduced complex stabilized only by monodentate ligands is astounding: tetraammonium salts of this dianion decompose above 150°C!