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Synthesis, Structure, and Magnetic Properties of the Binuclear Cobalt Complex [Co2(μ‑O2PPh2)2(Bpy)4](BF4)2.

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Název: Synthesis, Structure, and Magnetic Properties of the Binuclear Cobalt Complex [Co2(μ‑O2PPh2)2(Bpy)4](BF4)2.
Autoři: Kagilev, A. A., Gafurov, Z. N., Mikhailov, I. K., Sakhapov, I. F., Kantyukov, A. O., Dobrynin, A. B., Morozov, V. I., Zaripov, R. B., Bogomyakov, A. S., Babaeva, O. B., Sinyashin, O. G., Yakhvarov, D. G.
Zdroj: Russian Journal of Coordination Chemistry; Aug2025, Vol. 51 Issue 8, p767-772, 6p
Témata: MAGNETIC properties, X-ray diffraction, ELECTRON paramagnetic resonance spectroscopy, COORDINATE covalent bond, BRIDGING ligands, COBALT compounds, METALS, ANTIFERROMAGNETISM
Abstrakt: The reaction of cobalt tetrafluoroborate hexahydrate with 2,2'-bipyridine (Bpy) and diphenylphosphinic acid (Ph2P(O)OH) gave a new binuclear cobalt(II) complex [Co2(µ-O2PPh2)2(Bpy)4](BF4)2 featuring a sterically demanding bridging ligand. The complex was characterized by various physicochemical methods, and the crystal structure of the complex was determined by X-ray diffraction. Analysis of the X-ray diffraction structure of the complex showed that the cobalt ions have a distorted octahedral coordination and are linked by bridges through two {µ-O2PPh2} moieties. The data of ESR spectroscopy and magnetochemical measurements indicate the presence of a weak antiferromagnetic interaction between the cobalt ions in the molecule. [ABSTRACT FROM AUTHOR]
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Abstrakt:The reaction of cobalt tetrafluoroborate hexahydrate with 2,2'-bipyridine (Bpy) and diphenylphosphinic acid (Ph<subscript>2</subscript>P(O)OH) gave a new binuclear cobalt(II) complex [Co<subscript>2</subscript>(µ-O<subscript>2</subscript>PPh<subscript>2</subscript>)<subscript>2</subscript>(Bpy)<subscript>4</subscript>](BF<subscript>4</subscript>)<subscript>2</subscript> featuring a sterically demanding bridging ligand. The complex was characterized by various physicochemical methods, and the crystal structure of the complex was determined by X-ray diffraction. Analysis of the X-ray diffraction structure of the complex showed that the cobalt ions have a distorted octahedral coordination and are linked by bridges through two {µ-O<subscript>2</subscript>PPh<subscript>2</subscript>} moieties. The data of ESR spectroscopy and magnetochemical measurements indicate the presence of a weak antiferromagnetic interaction between the cobalt ions in the molecule. [ABSTRACT FROM AUTHOR]
ISSN:10703284
DOI:10.1134/S1070328425600688