Synthesis and structures of M(Me3SiNCHNSiMe3) 3 (M = Al, Ga) via reactions of M-hydrides with Me 3SiNCNSiMe3

Cole Ritter, Andrew Chizmeshya, T. L. Gray, John Kouvetakis

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Reactions of LiAlR4 and LiGaH4 with Me 3SiNCNSiMe3 yield, respectively, the monomeric hexacoordinate Al(Me3SiNCHNSiMe3)3 (1) and Ga(Me3SiNCHNSiMe3)3, (2) metal amidinate compounds. A unique feature of the work is the creation of the previously unknown bidentate [Me3SiNCHNSiMe3] anion ligand which shows the propensity to fully encapsulate the Al and Ga metal centers despite potential steric crowding associated with the six-fold coordination. Compound 1 was also obtained by the reaction of (Me3N)AlH3 with Me3SiNCNSiMe3 via displacement of NMe3 followed by reduction of the carbodiimide group. The structural properties of 1 and 2 derived from single crystal X-ray diffraction are elucidated and compared with various coordination analogs.

Original languageEnglish (US)
Pages (from-to)595-600
Number of pages6
JournalApplied Organometallic Chemistry
Volume21
Issue number7
DOIs
StatePublished - Jul 1 2007

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Keywords

  • Amidinates
  • Cyanamide
  • Hexacoordinate aluminum and gallium

ASJC Scopus subject areas

  • Chemistry(all)
  • Inorganic Chemistry

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