Crystallographic and spectroscopic studies on persistent triarylpropargyl cations
Takuya Shimajiri,
Taiga Tsue,
Shumpei Koakutsu
et al.
Abstract:By acid treatment of precursor alcohols, mesitylethynyl-substituted diarylmethyl cations were isolated as stable solids, X-ray structural analyses of which revealed a planar geometry. Furthermore, the ion pairs including these triarylpropargyl cations form charge-segregated assemblies in the crystal, and effective intermolecular interaction induces a red-shift of absorption in the crystal.
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