RbMo2P3O14 with large birefringence mainly induced by highly distorted [MoO6] in uncommon [Mo2P3O14]∞ layers

Rui Zhang; Xin Su; Jie Zhang; Mingyao Xiong; Yineng Huang

doi:10.1039/d1dt03285b

RbMo₂P₃O₁₄ with large birefringence mainly induced by highly distorted [MoO₆] in uncommon [Mo₂P₃O₁₄]_∞ layers

Dalton Trans. 2021 Dec 7;50(47):17559-17565. doi: 10.1039/d1dt03285b.

Authors

Rui Zhang^{1

2}, Xin Su^{1

2}, Jie Zhang³, Mingyao Xiong^{1

2}, Yineng Huang^{1

2}

Affiliations

¹ School of Physical Science and Technology, Yili Normal University, Yining 835000, China. suxin_phy@sina.com.
² Xinjiang Laboratory of Phase Transitions and Microstructures of Condensed Matter Physics, Yi Li Normal University, Yining 835000, China.
³ Department of Physics, Changji University, Changji, Xinjiang 831100, China.

PMID: 34816843
DOI: 10.1039/d1dt03285b

Abstract

The introduction of d⁰ transition metal Mo⁶⁺ cations into a phosphate generates a new acentric molybdophosphate, RbMo₂P₃O₁₄. It shows uncommon [Mo₂P₃O₁₄]_∞ layers composed of isolated [MoO₆] octahedra and [P₃O₁₀] groups. To the best of our acknowledge, it exhibits the largest birefringence (a calculated value of 0.166 at 546 nm) among reported molybdophosphates. In addition, it also possesses a shorter UV cut-off edge (about 250 nm) than other molybdates and molybdophosphates, indicating that it can be used as a birefringent crystal in the UV optical region. First-principles electronic structure analysis suggests that the large birefringence mainly originates from highly distorted [MoO₆].