| Abstract: | Synthesis and Crystal Structure of the Spirocycle [(i-Pr)2P(S)NSiMe3]2SnCl2 The reaction of (i-Pr)2P(S)N(SiMe3)2 ( 1 ) with SnCl4 in 2:1 ratio yields under elimination of ClSiMe3 the four-membered spirocycle [(i-Pr)2P(S)NSiMe3]2SnCl2 ( 2 ). The molecular structure of 2 was investigated by an X-ray structure analysis. Compound 2 crystallises in the monoclinic space group P21, Z = 2, a = 938.1(1), b = 1 424.1(2), c = 1 207.2(1) pm, β = 110.59(1)°, R = 2.05% for 4 102 reflexions. Compound 2 is a spirocycle with two Sn? N? P? S-rings joined at tin. The two rings are in cis-position. |
