Synthesis, structure, and magnetic properties of copper(II) complexes with 2-(5-methoxy-1-methyl-benzimidazol-2-yl)-1-(4-Methoxyphenyl)Ethanol

Synthesis, structure, and magnetic properties of copper(II) complexes with 2-(5-methoxy-1-methyl-benzimidazol-2-yl)-1-(4-Methoxyphenyl)Ethanol Научная публикация

Журнал

Journal of Molecular Structure
ISSN: 0022-2860

Вых. Данные

Год: 2026, Том: 1352, Номер статьи : 144368, Страниц : DOI: 10.1016/j.molstruc.2025.144368

Авторы

Koshchienko Yurii V. ¹ , Burlov Anatolii S. ¹ , Vlasenko Valery G. ² , Bogomyakov Artem S. ³ , Kolodina Alexandra A. ¹ , Zubavichus Yan V. ⁴ , Matiukhina Anna K. ⁵ , Kiskin Mikhail A. ⁵

Организации

1	Southern Federal University Institute of Physical and Organic Chemistry, Stachki ave. 194/2, 344090, Rostov-on-Don, Russian Federation
2	Southern Federal University Institute of Physics, Stachki ave. 194, 344090, Rostov-on-Don, Russian Federation
3	International Tomography Center, Siberian Branch of the Russian Academy of Sciences, Institutskaya St. 3a, 630090, Novosibirsk, Russian Federation
4	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, Koltsovo, 630559, Russian Federation
5	Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation

This study reports the synthesis and comprehensive characterization of two novel dinuclear copper(II) complexes derived from 2-(5-methoxy-1-methylbenzimidazol-2-yl)-1-(4-methoxyphenyl)ethanol (HL). The reaction of HL with copper(II) acetate hydrate and copper(II) nitrate trihydrate in tetrahydrofuran yielded dinuclear complexes formulated as [CuL(CH₃COO)]₂·2MeCN (1) and [CuLH(NO₃)DMF]₂·DMF (2), respectively. The compounds were characterized by elemental analysis, IR and ¹H NMR spectroscopy, and single-crystal X-ray diffraction analysis. Structural elucidation revealed that both complexes feature a Cu₂O₂ rhombic core with the copper centers bridged by alkoxide oxygen atoms. Magnetic susceptibility measurements in the temperature range of 5-300 K demonstrated strong antiferromagnetic exchange interactions in both complexes, with exchange coupling constants of J = -401 ± 11 cm⁻¹ for 1 and J = -445 ± 5 cm⁻¹ for 2. Broken-symmetry density functional theory (BS-DFT) calculations corroborated the experimental magnetic data and provided insight into the electronic structure and magnetic exchange pathways. The observed differences in magnetic behavior are discussed in relation to structural variations induced by the different coordinating anions.

Koshchienko Y.V. , Burlov A.S. , Vlasenko V.G. , Bogomyakov A.S. , Kolodina A.A. , Zubavichus Y.V. , Matiukhina A.K. , Kiskin M.A.
Synthesis, structure, and magnetic properties of copper(II) complexes with 2-(5-methoxy-1-methyl-benzimidazol-2-yl)-1-(4-Methoxyphenyl)Ethanol
Journal of Molecular Structure. 2026. V.1352. 144368 . DOI: 10.1016/j.molstruc.2025.144368 WOS Scopus OpenAlex

Поступила в редакцию:	24 июн. 2025 г.
Принята к публикации:	11 окт. 2025 г.
Опубликована online:	11 окт. 2025 г.
Опубликована в печати:	22 окт. 2025 г.

Web of science:	WOS:001606333400002
Scopus:	2-s2.0-105019175707
OpenAlex:	W4415071478

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