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K2Sb(P2O7)F: Cairo Pentagonal Layer with Bifunctional Genes Reveal Optical Performance |
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| Authors: | Yalan Deng Prof Ling Huang Xuehua Dong Lei Wang Prof Kang Min Ok Prof Hongmei Zeng Prof Zhien Lin Prof Guohong Zou |
| Institution: | 1. College of Chemistry, Sichuan University, Chengdu, 610064 P. R. China
College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066 P. R. China These authors contributed equally to this work.;2. College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066 P. R. China;3. College of Chemistry, Sichuan University, Chengdu, 610064 P. R. China;4. Department of Chemistry, Sogang University, Seoul, 04107 Republic of Korea |
| Abstract: | Discovering new functional genes, designing perfect crystal structures, and developing high-performance materials are the goals being pursued by scientists. Herein, the first antimony pyrophosphate, K2Sb(P2O7)F, possessing an optimal layered structure, is reported, where the perfect structural arrangement induces excellent optical properties. K2Sb(P2O7)F not only displays a sharply enhanced birefringence (0.157@546 nm) compared to the existing phosphate optical materials, but also exhibits a strong second-harmonic generation response (4.0×KDP). Remarkably, a new bifunctional gene, the square-pyramidal SbO4F group, was discovered, and a unique two-dimensional arrangement of Cairo pentagonal tiling units was observed in inorganic compounds for the first time. |
| Keywords: | antimony genes nonlinear optics materials science structure elucidation |