Trigonal Planar [HgSe3]4– Unit: A New Kind of Basic Functional Group in IR Nonlinear Optical Materials with Large Susceptibility and Physicochemical Stability

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• 作者：Chao Li ; Wenlong Yin ; Pifu Gong ; Xiaoshuang Li ; Molin Zhou ; Arthur Mar ; Zheshuai Lin ; Jiyong Yao ; Yicheng Wu ; Chuangtian Chen
• 刊名：Journal of the American Chemical Society
• 出版年：2016
• 出版时间：May 18, 2016
• 年：2016
• 卷：138
• 期：19
• 页码：6135-6138
• 全文大小：321K
• 年卷期：0
• ISSN：1520-5126

文摘

A new mercury selenide BaHgSe₂ was synthesized. This air-stable compound displays a large nonlinear optical (NLO) response and melts congruently. The structure contains chains of corner-sharing [HgSe₃]^4– anions in the form of trigonal planar units, which may serve as a new kind of basic functional group in IR NLO materials to confer large NLO susceptibilities and physicochemical stability. Such trigonal planar units may inspire a path to finding new classes of IR NLO materials of practical utility that are totally different from traditional chalcopyrite materials.