U. Casellato, R. Graziani, V. Peruzzo
Jan 25, 1995
Citations
0
Influential Citations
7
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract 4-Bromopyrazole, which is much less basic than the corresponding pyrazole but with similar hydrogen-bonding acidity, gives stable solid hexacoordinate complexes with dimethyl- and divinyl-tindichloride. The crystal structure of the trans-octahedral compound Sn(CH3)2Cl2 · 2C3H3BrN2 was determined by X-ray crystallography and refined to R = 0.030. Intra-molecular hydrogen bonds are probably responsible for the essentially coplanar orientation of the pyrazolic ring plane with the SnCl2N2 plane. The packing is stabilized by inter-molecular hydrogen bonding.