Crystal structure and ferrimagnetism of AgCo3Cr(MoO4)5 with mixed occupation of the transition metal sites

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Dalton Transactions Pub Date : 2025-02-21 DOI:10.1039/d4dt03353a

Irina Kotova, Tatyana S. Spiridonova, Aleksandra Savina, E. G. Khaikina, Sergey F. Solodovnikov, Zoya A. Solodovnikova, Hyun-Joo Koo, Myung-Hwan Whangbo, Yevgeny Ovchenkov, Konstantin Zakharov, Larisa Victorovna Shvanskaya, Tatyana M. Vasilchikova, Alexander Vasiliev

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Abstract

We prepared a new compound, AgCo3Cr(MoO4)5, and characterized its crystal structure and physical properties. It crystallizes in the triclinic space group P1 @#x0305; with mixed occupations of the transition-metal sites M = (Co, Cr). The Ag site is split into three close positions. The magnetic subsystem of the title compound consists of M2O10 dimers and M3O14 trimers, made up of edge-sharing MO6 octahedra. These units are interconnected by MoO4 tetrahedra. Both ac and dc magnetic susceptibility, as well as specific heat and dielectric permittivity, evidence a ferrimagnetic behavior below at Tferri = 5.5 K. To investigate the properties of this nanostructured system, we evaluated the spin exchanges for the four most probable magnetic ion arrangements. We found that considering the local structure is essential for understanding the behavior of a magnet with mixed occupations of the transition metal sites.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.