July 6, 2009Journal of the American Chemical Society244 citations
View Full PaperChalcogenide Chemistry in Ionic Liquids: Nonlinear Optical Wave-Mixing Properties of the Double-Cubane Compound Sb7S8Br2(AlCl4)3
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Abstract
The new cation Sb7S8Br23+ has a double-cubane structure and forms as the AlCl4− salt from the ionic liquid EMIMBr−AlCl3 (EMIM = 1-ethyl-3-methylimidazolium) at 165 °C. The compound is noncentrosymmetric with space group P212121 and exhibits second-harmonic and difference-frequency nonlinear optical response across a wide range of the visible and near-infrared regions.