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Nonlinear Optical Responses in One-Dimensional Zinc Thiocyanates Functionalized with Natural Amino Acids
Xuemei Wen1, Qinglan Zhong1, Guohong Zou1
1College of Chemistry, Sichuan University, Chengdu 610064, China.
Abstract:
Transparent crystals of Zn(SCN)2(l-C6H9N3O2) (1) and Zn(SCN)(l-C5H8NO2)(H2O) (2) were obtained using natural amino acids as linkers. The two compounds have one-dimensional structures that combine molecular and helical chiralities. They exhibit significant nonlinear optical responses that are phase matchable under 1064 nm laser irradiation. Notably, the second-harmonic generation efficiency of compound 2 (3.8 × KH2PO4) surpasses those of previously reported metal thiocyanates functionalized with natural amino acids.
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