141727-22-2Relevant academic research and scientific papers
Solution chemistry of cyclotrigallazane: supercritical ammonia and lewis base catalyzed dehydrogenation to produce poly(imidogallane)
Jegier, Jolin A.
, p. 2726 - 2733 (1999)
The polymeric hydrido gallium imide [HGaNH]n, or poly(imidogallane), was isolated as an intermediate in the conversion of cyclotrigallazane, [H2GaNH2]3, to gallium nitride in supercritical ammonia. Poly(imidogallane) can be converted to nanocrystalline GaN via solid-state pyrolysis or by extended thermolysis in supercritical ammonia. Characterization by IR spectroscopy, elemental analysis, and X-ray and electron diffraction suggests that the structure of poly(imidogallane) is a layered solid with a coherent length of approximately 15 nm. The interaction of [H2GaNH2]3 and various Lewis bases leads to the isolation of [HGaNH]n and gallane - Lewis base adducts, H3Ga·base, rather than the expected gallazane adducts, H2GaNH2·base. Experiments involving the use of ND3 resulted in the isolation of [H2GaND2]3 and suggest that the donor - acceptor complex H2Ga(NH2)(ND3) was present in solution. It was proposed that these gallazane - base adducts equilibrate via a ligand redistribution reaction and that the formation of [HGaNH]n results from NH3 elimination from a diamidogallium hydride. The proposed mechanism is used to explain the catalytic role of ammonia in the conversion of [H2GaNH2]3 to [HGaNH]n.
Chloride and Phosphide-substituted Gallium Hydrides: 3PGaH3-nCln>, n = 1 or 2, and Trimeric 3>
Elms, F. M.,Koutsantonis, G. A.,Raston, C. L.
, p. 1669 - 1670 (2007/10/02)
Thermally robust chlorogallanes, Cy3PGaH2Cl 1 and Cy3PGaHCl2 2, accessible by redistribution reactions involving Cy3PGaH3 and Cy3PGaCl3 (Cy = cyclohexyl) or 1 via anhydrous HCl reaction with Cy3PGaH3, show phosphine but not chloride-hydride exchange in aromatic solvents; treatment of 1 with affords trimeric 3> 3, which crystallises in a twist-boat conformation.
