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