| Abstract
| - (CH3)4N+SO2CN- was prepared from (CH3)4N+CN- and SO2 and characterized by 1H, 13C, 14NNMR, infrared, and Raman spectroscopy. The yellow salt is stable up to −10 °C, but solutions in SO2 decomposealready at −50 °C in 1 day. The structure of the anion was predicted by ab initio calculations, suggesting Cssymmetry with a pyramidal coordination at the central sulfur atom with the following geometry: d(SO) =146.7 pm, d(SC) = 190.8 pm, ∠(OSO) = 114.0°, ∠(OSC) = 100.8°, and ∠(SCN) = 173.6°. The bent SCNarrangement is explained by negative hyperconjugation.
|
