期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 20, 页码 11457-11463出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202102107
关键词
aperiodic materials; borosulfates; incommensurate structural modulations; NLO materials; phase transitions
资金
- National Natural Science Foundation of China [21833010, 61975207, 21921001, 51872297, 51890864, 21621061, 21527803, 21871009]
- Key Research Program of Frontier Sciences of the Chinese Academy of Sciences [ZDBS-LY-SLH024]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20010200, XDB20000000]
- Fujian Institute of Innovation in Chinese Academy of Sciences [FJCXY18010201]
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences [FCLT 202003]
- Key Laboratory of New Processing Technology for Nonferrous Metal AMP
- Materials, Ministry of Education/Guangxi Key Laboratory of Optical and Electronic Materials and Devices [20KF-11]
The borosulfate LiRb4[B(SO4)4] exhibits potential as a new class of deep-UV nonlinear optical material, undergoing successive first-order phase transitions with incommensurate structural modulations. The unique properties of NLO responses, phase transitions, and incommensurate modulations in LiRb4[B(SO4)4] are closely related to the super-tetrahedral units with B-O-S bonding, offering new possibilities for understanding physics and chemistry in aperiodic materials.
Despite borate-sulfates composed of isolated borate and sulfate groups have been discovered for more than one century, borosulfates of B-O-S bonding have not been synthesized until 2012 and their properties remain rarely explored. Here, we report a new borosulfate, namely LiRb4[B(SO4)(4)], which shows potential as a bran-new class of deep-UV nonlinear optical (NLO) material. Remarkably, according to the in situ single-crystal X-ray diffraction, LiRb4[B(SO4)(4)] undergoes successive first-order phase transitions with incommensurate structural modulations under room temperature and low temperature with (3 + 1)D superspace groups of X2(alpha 0 gamma)0 and P2(1)(alpha 0 gamma)0, respectively. The first-principle calculations and structural analyses reveal that NLO properties, phase transitions, and incommensurate modulations are closely related to the [B(SO4)(4)](5-) super-tetrahedral units with B-O-S bonding. We anticipate that the unprecedented coexistence of deep-UV transparency, NLO responses, and incommensurate structural modulations in one borosulfate will bring new possibilities to understand the underlying concepts of physics and chemistry in aperiodic materials.
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