Issue 12, 2014

New type of complex alkali and alkaline earth metal borates with isolated (B12O24)12− anionic group

Abstract

Compounds with isolated anionic groups often exhibit special linear and nonlinear optical properties and possess potential applications such as birefringence, second harmonic generation and stimulated Raman scattering crystals. In this paper, two new alkali and alkaline earth mixed-metal borates, Li3KB4O8 and LiNa2Sr8B12O24F6Cl, with isolated (B12O24)12− anionic groups have been successfully synthesized by spontaneous crystallization. Their structures were determined by single crystal X-ray diffraction and they both crystallize in the same space group, R[3 with combining macron]. More interestingly, further structure comparison shows that the discovered anhydrous borates with the (B12O24)12− groups also crystallize in the same space group R[3 with combining macron], which is related with the local symmetry of the (B12O24)12− groups. These structural features suggest that the crystal structures of the family of compounds depend more on their anionic groups. In addition, the property characterizations of the two new borates were investigated by TG-DSC, IR and UV-vis-NIR diffuse reflectance.

Graphical abstract: New type of complex alkali and alkaline earth metal borates with isolated (B12O24)12− anionic group

Supplementary files

Article information

Article type
Paper
Submitted
04 Nov 2013
Accepted
11 Dec 2013
First published
19 Dec 2013

Dalton Trans., 2014,43, 4886-4891

New type of complex alkali and alkaline earth metal borates with isolated (B12O24)12− anionic group

H. Wu, H. Yu, S. Pan, A. Jiao, J. Han, K. Wu, S. Han and H. Li, Dalton Trans., 2014, 43, 4886 DOI: 10.1039/C3DT53115E

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