Structure-Related Evolution of Magnetic Order in Anisidinium Tetrachlorocuprates(II)

Topić, Edi; Šenjug, Pavla; Barišić, Dario; Lončarić, Ivor; Pajić, Damir; Rubčić, Mirta (2023) Structure-Related Evolution of Magnetic Order in Anisidinium Tetrachlorocuprates(II). Crystal Growth & Design, 23 (6). pp. 4262-4272. ISSN 1528-7483

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Abstract

Tetrachlorocuprate(II) hybrids of the three anisi-dine isomers (ortho-, meta-, and para-, or 2-, 3-, and 4-methoxyaniline, respectively) were prepared and studied in the solid state via X-ray diffraction and magnetization measurements. Depending on the position of the methoxy group of the organic cation, and subsequently, the overall cation geometry, a layered, defective layered, and the structure comprising discrete tetrachlorocuprate(II) units were obtained for the para-, meta-, and ortho-anisidinium hybrids, respectively. In the case of layered and defective layered structures, this affords quasi-2D-layered magnets, demonstrating a complex interplay of strong and weak magnetic interactions that lead to the long-range ferromagnetic (FM) order. In the case of the structure with discrete CuCl42- ions, a peculiar antiferromagnetic (AFM) behavior was revealed . The structural and electronic origins of magnetism are discussed in detail. To supplement it, the method for calculation of dimensionality of the inorganic framework as a function of interaction length was developed. The same was used to discriminate between n- dimensional and "almost" n-dimensional frameworks, to estimate the organic cation geometry limits for layered halometallates, and to provide additional reasoning behind the observed relation between cation geometry and framework dimensionality, as well as their relation to differences in magnetic behavior.

Item Type:	Article
Uncontrolled Keywords:	Cations; Chemical structure; Crystal structure; Ions; Magnetic properties
Subjects:	NATURAL SCIENCES > Physics NATURAL SCIENCES > Chemistry
Divisions:	Theoretical Physics Division
Projects:	Project title Project leader Project code Project type Magnetoelektrični multiferoični sustavi-FerMaEl Damir Pajić UIP-2014-09-8276 HRZZ Centar izvrsnosti u kemiji - CIuK-CIuK Josip Požar; Mirta Rubčić; Ivana Biljan KK.01.1.1.02.0016 EK Centar za Napredna Istraživanja Kompleksnih Sustava-CeNIKS Mihael Srđan Grbić; Emil Tafra KK.01.1.1.02.0013 EK
Depositing User:	Josipa Karadžole
Date Deposited:	15 Apr 2026 08:58
URI:	http://fulir.irb.hr/id/eprint/11712
DOI:	10.1021/acs.cgd.3c00066

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