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Published on: April 14, 2020
Second-Harmonic Generation in Homochiral Antimony Halides Directed by l-Histidine
Juan Cheng1, Peiqi Qian1, Meng Yang1
1College of Chemistry, Sichuan University, Chengdu 610064, China.
Abstract:
Three homochiral organic-inorganic hybrid antimony halides, namely, (L-Hhis)2Sb2Cl8 (1), L-H2his·SbBr5·H2O (2), and (L-H2his)2·Sb3I13·4H2O (3), were prepared to investigate the structure-directing roles of l-histidine (l-his). These compounds feature dimeric, chainlike, and trimeric structures with different optical bandgaps. They display second-harmonic-generation (SHG) responses of 0.1, 2.6, and 0.05 times that of KH2PO4, respectively. Theoretical calculations for compound 2 were carried out to get insights into its structure-property relationship.
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