The molecular structure of N-sulfinyl trimethylsilanamine, (CH3)3SiNSO

Abstract The geometric structure of (CH 3 ) 3 SiNSO in the vapour phase has been determined by gas electron diffraction. The molecule possesses a planar SiNSO skeleton with syn conformation. The Si(CH 3 ) 3 group staggers the NS double bond. The following skeletal parameters ( r a distances and ∠ α angles with 3σ errors limits) were obtained: SiN 1.750(6)A, NS 1.508(5)A, SO 1.444(4)A, SiNS 133.9(9)°, NSO 122.5(10)°. Ab initio calculations ( HF /3−21 G ∗ ) were performed for H 3 SiNSO and confirm the planar syn structure for sulfinyl silanamines.