Issue 8, 2019

An alkali metal phosphate RbPbBi2(PO4)3 with three kinds of disorder: the effect of isolated soft cation units on the crystal structure

Abstract

With isolated Rb–O units and PO4 tetrahedra, RbPbBi2(PO4)3 exhibits three kinds of disorder in the crystal structure. Significantly, structures with isolated cation units like Cs–O, Rb–O and K–O units exhibit quite high ratios of disorder in inorganic phosphates. We firstly put forward the concept of isolated soft units that can cause structural distortions of the crystal structure and is favorable for the appearance of structural disorder. In addition, the synthesis, IR spectra, UV-vis-NIR diffuse reflectance spectroscopy data, and thermal and second harmonic generation (SHG) tests of the title compound have been reported.

Graphical abstract: An alkali metal phosphate RbPbBi2(PO4)3 with three kinds of disorder: the effect of isolated soft cation units on the crystal structure

Supplementary files

Article information

Article type
Research Article
Submitted
23 May 2019
Accepted
17 Jun 2019
First published
18 Jun 2019

Inorg. Chem. Front., 2019,6, 2050-2054

An alkali metal phosphate RbPbBi2(PO4)3 with three kinds of disorder: the effect of isolated soft cation units on the crystal structure

M. Wen, H. Wu, Z. Yang, X. Wu and S. Pan, Inorg. Chem. Front., 2019, 6, 2050 DOI: 10.1039/C9QI00591A

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