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Synthesis, Crystal Structure, and Nonlinear Optical Property of an Anhydrous Sulfate KTb(SO4)2 by Qi Wu; Can Yang; Jie Ma; Fei Liang; Chunlin Teng; Yeshuang Du is a Chemistry article available to read on EtoBox.

What is Synthesis, Crystal Structure, and Nonlinear Optical Property of an Anhydrous Sulfate KTb(SO4)2 about?

A new alkali metal-rare earth metal anhydrous sulfate, KTb(SO 4 ) 2 (KTSO), was synthesized by a hydrothermal method. It crystallized in the non-centrosymmetric (NCS) orthorhombic space group P2 1 2 1 2 1 with cell parameters a = 5.43950(10), b = 8.8579(3), c = 13.3962(4), Z = 2. Its structure is composed of [KO 11 ], [TbO 8 ], and [SO 4 ] groups, which are interconnected to constitute a one-dimensional (1D) chain, and then further linked to construct a three-dimensional (3D) network structure through [SO 4 ] units. The results of the powder frequency doubling test show that KTb(SO 4 ) 2 has a phase-matching secondorder nonlinear optical effect of 0.3 times that of KH 2 PO 4 (KDP). The measured birefringence of the crystal (0.01) agrees well with the calculated value (0.019). Meanwhile, its infrared and ultraviolet spectrum and thermal properties were studied, respectively. Its optical properties and band gap structure are studied by theoretical calculation. This work provides a NCS structure of anhydrous sulfates and offers guidance for further exploration of new anhydrous sulfates.

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Author

Qi Wu; Can Yang; Jie Ma; Fei Liang; Chunlin Teng; Yeshuang Du

Published

2021

Language

EN

Field

Chemistry (Physical Sciences)