Some chemical properties of monochlorogallane: decomposition to gallium(I) trichlorogallate(III), Ga(+)[GaCl3H](-), and other reactions

E Johnsen; A J Downs; M J Goode; T M Greene; H J Himmel; M Müller; S Parsons; C R Pulham

doi:10.1021/ic010128x

Some chemical properties of monochlorogallane: decomposition to gallium(I) trichlorogallate(III), Ga(+)[GaCl3H](-), and other reactions

Inorg Chem. 2001 Aug 27;40(18):4755-61. doi: 10.1021/ic010128x.

Authors

E Johnsen¹, A J Downs, M J Goode, T M Greene, H J Himmel, M Müller, S Parsons, C R Pulham

Affiliation

¹ Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.

PMID: 11511226
DOI: 10.1021/ic010128x

Abstract

Thermal decomposition of monochlorogallane, [H2GaCl]n, at ambient temperatures releases H2 and results in the formation of gallium(I) species, including the new compound Ga[GaHCl3], which has been characterized crystallographically at 100 K (monoclinic P2(1)/n, a = 5.730(1), b = 6.787(1), c = 14.508(1) A, beta = 97.902(5) degrees ) and by its Raman spectrum. The gallane suffers symmetrical cleavage of the Ga(mu-Cl)2Ga bridge in its reaction with NMe3 but unsymmetrical cleavage, giving [H2Ga(NH3)2](+)Cl(-), in its reaction with NH3. Ethene inserts into the Ga-H bonds to form first [Et(H)GaCl]2 and then [Et2GaCl]2.