Deep Eutectic Solvents Synthesis of A2Sb(C2O4)Cl3 (A = NH4, K, Rb) with Superior Optical Performance

Author:

Zhang Die1,Wang Qiang1,Luo Han1,Cao Liling1,Dong Xuehua1,Huang Ling1,Gao Daojiang1,Zou Guohong2ORCID

Affiliation:

1. College of Chemistry and Materials Science Sichuan Normal University Chengdu 610066 P. R. China

2. College of Chemistry Sichuan University Chengdu 610065 P. R. China

Abstract

AbstractDeep eutectic solvents (DESs), which are considered as a new kind of green solvents, have been adopted for the synthesis of diverse functional materials. Herein, DESs synthesis is used to solve the problem of easy hydrolysis and oxidation of the emerging optical functional groups Sb3+ cations, producing three novel antimony chloride oxalates named A2Sb(C2O4)Cl3 (A = NH4, K, Rb). The three title compounds feature noncentrosymmetric structures consisted of [Sb(C2O4)Cl3]2– anionic clusters, which induce excellent linear and nonlinear optical properties of them. Particularly, Rb2Sb(C2O4)Cl3 exhibits a strong nonlinear optical response that is 2.1 times that of KH2PO4, as well as large calculated birefringence of 0.22@546 nm, indicating that antimony oxalates are promising optical materials. This work affords an effective strategy to settle the difficulties in crystallization of the materials including cations with low oxidation state and easy hydrolysis.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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