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In situ hydrothermal synthesis of polar second-order nonlinear optical selenate Na₅(SeO₄)(HSeO₄)₃(H₂O)₂

Wu, Chao; Jiang, Xingxing; Lin, Lin; Wu, Tianhui; Lin, Zheshuai; Huang, Zhipeng; Humphrey, Mark; Zhang, Chi


The first alkali-metal selenate nonlinear optical (NLO) crystal, Na5(SeO4)(HSeO4)3(H2O)2, has been obtained by in situ hydrothermal synthesis. It crystallizes in the polar and noncentrosymmetric (NCS) space group Cc (no. 9). The structure of Na5(SeO4)(HSeO4)3(H2O)2 can be described as isolated [SeO4]/[HSeO4] tetrahedra connected by H-bonding interactions and Na-O bonds, forming a three-dimensional framework. Powder second-harmonic generation (SHG) measurements show that Na5(SeO4)(HSeO4)3(H2O)2...[Show more]

CollectionsANU Research Publications
Date published: 2021
Type: Journal article
Source: Inorganic Chemistry Frontiers
DOI: 10.1039/d1qi00373a


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