Synthesis and reactivity of a novel palladium germylene system

Zuzanna T. Cygan, John E. Bender IV, Kyle E. Litz, Jeff W. Kampf, Mark M. Banaszak Holl

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Abstract

The synthesis of three novel Pd germylene complexes is reported. (Ph3P)2PdGe[N(SiMe3)2]2 (1) was synthesized by ligand substitution of (Ph3P)4Pd, whereas (Et3P)PdGe[N(SiMe3)2]2 (2) and {appePdGe[N(SiMe3)2]2}2 (3b) (dppe = (diphenylphosphino)ethane) were synthesized by photolytic reduction of their corresponding phosphine oxalato complexes followed by addition of the germylene ligand. In solution, 3b exists in equilibrium with the monomeric dppePdGe[N(SiMe3)2]2 (3a). The germylene ligand of 2 was found to be 1 order of magnitude more labile than the analogous Pt system and 2 orders of magnitude less labile than the analogous Ni system. The reactivity of these new palladium germylenes toward O2 is described.

Original languageEnglish
Pages (from-to)5373-5381
Number of pages9
JournalOrganometallics
Volume21
Issue number24
DOIs
Publication statusPublished - 25 Nov 2002
Externally publishedYes

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