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Synthesis and Structure of [Ba 3 (OSiPh 3 ) 6 (THF)] · 0.5 THF, a Trinuclear Barium Siloxide Containing Low‐Coordinate Barium Ions
Author(s) -
Caulton Kenneth G.,
Chisholm Malcolm H.,
Drake Simon R.,
Streib William E.
Publication year - 1990
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.199014831
Subject(s) - barium , ion , yield (engineering) , crystallography , ligand (biochemistry) , chemistry , stereochemistry , inorganic chemistry , materials science , organic chemistry , biochemistry , receptor , metallurgy
A Triangle of Ba ions capped by two μ 3 ‐OSiPh 3 ligands and further linked by three μ 2 ‐OSiPh 3 moieties are present in the central structural unit of the title compound. All three Ba ions are, however, differently coordinated: thus, a terminal siloxido ligand on Ba3 caters for electrical neutrality, whereas a THF ligand is bound to Ba 1. This unusual trinuclear complex is formed in 77% yield on passage of NH 3 into a reaction mixture granulated Ba and Ph 3 SiOH in THF.