Synthesis and structural characterization of metallogermylenes, Cp-substituted germylene, and a germanium(II)-borane adduct from pyridyl-1-azaallyl germanium(II) chloride

Wing Por Leung, Wang Kin Chiu, Thomas C.W. Mak

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19 Citations (Scopus)

Abstract

The reaction of [{N(SiMe 3)C(Ph)C(SiMe 3)(C 5H 4N-2)}GeCl] (1) with Na[M(η 5-C 5H 5)(CO) 3]•2DME (M = Mo, W) afforded the metallogermylenes [{N(SiMe 3)C(Ph)C(SiMe 3)(C 5H 4N-2)}Ge-M(η 5-C 5H 5)(CO) 3] (M = Mo (2), W (3)). Compounds 2 and 3 have been characterized by X-ray crystallography and NMR and IR spectroscopy. Structural analyses of compounds 2 and 3 are consistent with the presence of lone-pair electrons at the germanium(II) center. The Ge-Mo and Ge-W bond distances of 2.875(1) and 2.852(1) Å are consistent with Ge-metal single bonds. The chlorogermylene 1 was also used in the synthesis of a substituted germylene, [{N(SiMe 3)C(Ph)C(SiMe 3)(C 5H 4N-2)} Ge(η 1-C 5H 5)] (4), by reaction with sodium cyclopentadienylide. The reaction of compound 1 with tris(pentafluorophenyl) borane led to the formation of a Lewis acid-base adduct, [{N(SiMe 3)C(Ph)C(SiMe 3)(C 5H 4N-2)}Ge(Cl) →B(C 6F 5) 3] (5).

Original languageEnglish
Pages (from-to)6966-6971
Number of pages6
JournalOrganometallics
Volume31
Issue number19
DOIs
Publication statusPublished - 8 Oct 2012

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