The crystal and molecular structure of a dideuterio(pyrazol-1-yl)gallane dimer

Abstract

Crystals of the title compound are orthorhombic, a= 11·518(2), b= 11·278(1), c= 8·267(1)Å, space group Cmc2₁, Z= 4 (dimeric units). The structure was determined from diffractometer data by Patterson and Fourier syntheses, and refined by full-matrix least-squares methods to R0·049 for 491 observed reflexions. The molecule is V-shaped, the angle between the unique portion of the molecule and its crystallographic mirror image being 128·4°, and the six-membered Ga(N–N)₂ Ga ring being in the boat conformation. Mean dimensions are: Ga–N 1·974, N–N 1·34, N–C 1·35, C–C 1·35 Å N–Ga–N′ 96·6, Ga–N–N′123·6°.