Nuclear magnetic resonance and Mössbauer spectra of some organotin anions

Abstract

¹ H N.m.r. spectra of SnH₄, [Me_{3 –x}SnH_x]^–, [Ph_{3 –x}SnH_x]^–, and [(PhCH₂)₂SnH]^– have been obtained in liquid ammonia and the nature of the species present in solution is discussed. Evidence to support the presence of 2-ions in solution has not been obtained. Mössbauer data on Na[SnPh₃] confirm that both contact and solvent-separated ion pairs are present together in dimethoxyethane solutions and that their Mössbauer parameters are δ 1·20, Δ= 0·0 and δ= 2·14, Δ= 1·87 mm s^–1, respectively.