Synthesis and Structural Characterization of Homoleptic Gallium Amides

David A. Atwood, Vicki O. Atwood, Alan H. Cowley, Richard A. Jones, Jerry L. Atwood, Simon G. Bott

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41 Scopus citations

Abstract

The homoleptic Ga(III) amides [(t-Bu(H)N)2Ga(μ-N(H)t-Bu)]2 (1) and Ga(N(t-Bu)SiMe3)3 (2) have been synthesized via the reaction of GaCl3 with 3 equiv of the appropriate lithium amide. A third tris(amide), Ga(tmp)3 (3) (tmp = 2,2,6,6-tetramethylpiperidide), was prepared by the thermal reaction of GaCl3 with 3 equiv of Htmp. The structures of 1 and Ga(N(SiMe3)2)3 (4) have been determined by single-crystal X-ray diffraction methods. Compound 1 crystallizes in the monoclinic space group C2/m (No. 12) with a = 9.879(2) Å, b = 17.427(7) Å, c = 19.742(1) Å, β = 101.38(3)°, V = 3332(23) Å3, and Z = 4. Compound 4 crystallizes in the trigonal space group P31c (No. 163) with a = 16.050(1) Å, c = 8.6063(7) Å, V = 1920(5) Å3, and Z = 2. Compound 1 exists in the crystalline state as discrete dimeric units with two bridging and four terminal amido groups. The crystalline state of 4 comprises discrete monomers with D3 symmetry. The structure of 2 is disordered.

Original languageEnglish
Pages (from-to)3251-3254
Number of pages4
JournalInorganic Chemistry
Volume33
Issue number15
DOIs
StatePublished - Jul 1 1994

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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