Journal
INORGANIC CHEMISTRY
Volume 56, Issue 21, Pages 13456-13463Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b02168
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Funding
- Urumqi Science and Technology Plan [P151010004, P161010003]
- Xinjiang Program of Cultivation of Young Innovative Technical Talents [QN2016BS0344]
- National Natural Science Foundation of China [51425206, 91622107, 21501194]
- National Key Research Project [2016YFB1102302, 2016YFB0402104]
- Xinjiang Key Research and Development Program [2016B02021]
- National Basic Research Program of China [2014CB648400]
- Major Program of Xinjiang Uygur Autonomous Region of China [2016A02003]
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Three new mixed-alkaline borates Na2M2B20O33 (M = Rb, Cs) and Li4Cs4B40O64 with unique structures were synthesized by the spontaneous nucleation method, and their structures were determined by single-crystal X-ray diffraction. The B-O networks of Na2M2B20O32 (M = Rb, Cs) are constructed by two independent interpenetrating three-dimensional (3D) frameworks, which is the first case in anhydrous mixed-alkaline borate systems. In addition, Li4Cs4B40O64 shows high B-O polymerization with a new fundamental building block B40O77. Meanwhile, detailed structure comparisons containing the cation effect on the framework have been discussed. UV-vis-NIR diffuse reflectance spectra and the infrared spectra were measured. The band structures and the density of states were performed using, density functional theory calculation.
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