Polymorphism in M(H2PO2)3 (M = V, Al, Ga) compounds with the perovskite-related ReO3 structure†,Chemical Communications

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Polymorphism in M(H2PO2)3 (M = V, Al, Ga) compounds with the perovskite-related ReO3 structure†
Chemical Communications ( IF 4.3 ) Pub Date : 2019-02-15 00:00:00 , DOI: 10.1039/c9cc00118b
Hayden A. Evans _{1,

2,

2,

3,

4} , Zeyu Deng _{5,

6,

7,

8,

9} , Ines E. Collings _{10,

11,

12} , Yue Wu _{5,

6,

7} , Jessica L. Andrews _{1,

2,

3} , Kartik Pilar _{2,

3,

4} , Joshua M. Tuffnell _{13,

14,

15} , Guang Wu _{1,

2,

3} , John Wang _{5,

6,

7} , Siân E. Dutton _{13,

14,

15} , Paul D. Bristowe _{8,

9,

15} , Ram Seshadri _{1,

2,

2,

3,

4} , Anthony K. Cheetham _{2,

3,

4,

5,

6}

Affiliation

Department of Chemistry and Biochemistry, University of California Santa Barbara
California 93106
USA
Materials Research Laboratory, University of California Santa Barbara
Department of Materials Science and Engineering, National University of Singapore
Singapore 117575
Singapore
Department of Materials Science and Metallurgy, University of Cambridge
CB3 0FS Cambridge
European Synchrotron Radiation Facility
38000 Grenoble
France
Cavendish Laboratory, Department of Physics, University of Cambridge
Cambridge CB3 0HE
UK

Trivalent metal hypophosphites with the general formula M(H₂PO₂)₃ (M = V, Al, Ga) adopt the ReO₃ structure, with each compound displaying two structural polymorphs. High-pressure synchrotron X-ray studies reveal a pressure-driven phase transition in Ga(H₂PO₂)₃ that can be understood on the basis of ab initio thermodynamics.

中文翻译：

具有钙钛矿相关ReO ₃结构的 M（H ₂ PO ₂）₃（M = V，Al，Ga）化合物的多态性†

通式为M（H ₂ PO ₂）₃（M = V，Al，Ga）的三价金属次磷酸盐采用ReO ₃结构，每种化合物均显示两个结构多晶型物。高压同步加速器X射线研究揭示了Ga（H ₂ PO ₂）₃中压力驱动的相变，该相变可以从头算热力学来理解。

更新日期：2019-02-15

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