| Abstract: | (tBu2SnAsH)2 and (tBu2SnAsH)3: Two Novel Ring-Oligomeric Stannylarsines tBu2SnCl2 reacts with NaAsH2 in liquid ammonia to give the four-membered As–H-functional stannylarsine (tBu2SnAsH)2 ( 1 ). The oligomeric six-membered heterocycle (tBu2SnAsH)3 ( 2 ) is obtained by transamination of tBu2Sn(NHtBu)2 with AsH3. The novel compounds are characterized by NMR (1H, 119Sn) and mass spectroscopy and their molecule structures determined by X-ray crystallography. In the solid state both compounds contain molecules with planar tin-arsenic rings ( 1 : space group P21/n, Z = 2; 2 : space group P63/m, Z = 2). |
