NaKV4O9·2H2O: a new 2D magnetic compound with a 1/5-depleted square lattice

Meiyan Cui; Zhangzhen He; Nannan Wang; Yingying Tang; Wenbin Guo; Suyun Zhang; Lin Wang; Hongping Xiang

doi:10.1039/C5DT04745E

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NaKV₄O₉·2H₂O: a new 2D magnetic compound with a 1/5-depleted square lattice†

Meiyan Cui,^ab Zhangzhen He,*^a Nannan Wang,^a Yingying Tang,^a Wenbin Guo,^a Suyun Zhang,^a Lin Wang^a and Hongping Xiang^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
E-mail: hezz@fjirsm.ac.cn

^b University of the Chinese Academy of Sciences, Beijing, P. R. China

Abstract

A new vanadate compound NaKV₄O₉·2H₂O is successfully synthesized by a conventional hydrothermal method. This compound crystallizes in the monoclinic system with the space group C2/c, showing a typical 2D layered structure built from VO₅ pyramids, in which the layers are separated by Na⁺, K⁺, and H₂O. The topology structure of magnetic V⁴⁺ ions shows a quite interesting 1/5-depleted square lattice, which is quite similar to that of a famous low-dimensional quantum spin system CaV₄O_9. A structural and magnetic comparison confirmed that the title compound may exhibit a more pronounced 2D character with a large spin gap.

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Article information

DOI: https://doi.org/10.1039/C5DT04745E
Article type: Paper
Submitted: 04 Dec 2015
Accepted: 04 Feb 2016
First published: 09 Feb 2016

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Dalton Trans., 2016,45, 5234-5239

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NaKV₄O₉·2H₂O: a new 2D magnetic compound with a 1/5-depleted square lattice

M. Cui, Z. He, N. Wang, Y. Tang, W. Guo, S. Zhang, L. Wang and H. Xiang, Dalton Trans., 2016, 45, 5234 DOI: 10.1039/C5DT04745E

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