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Synthesis, structure, and magnetic properties of the cobalt(ii) iodide complex with 1,4-diazabuta-1,3-diene ligand

Synthesis, structure, and magnetic properties of the cobalt(ii) iodide complex with... The reaction of cobalt(ii) iodide with 1,4-bis(2,4,6-trimethylphenyl)-1,4-diazabuta-1,3-diene (Mes-DAD) in anhydrous acetonitrile afforded the mononuclear complex [CoI2(Mes-DAD)] (1). The crystal structure of the complex was established by single-crystal X-ray diffraction. The phase purity was confirmed by powder X-ray diffraction. The zero-field splitting parameter (D = 17.2 cm−1) and the intermolecular exchange coupling parameter (zJ = −0.78 cm−1) were determined from magnetochemical studies of complex 1 in a direct current magnetic field of 5 kOe in the temperature range of 2–300 K. Magnetic measurements in an alternating magnetic field showed the absence of slow relaxation of the magnetization. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Chemical Bulletin Springer Journals

Synthesis, structure, and magnetic properties of the cobalt(ii) iodide complex with 1,4-diazabuta-1,3-diene ligand

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References (80)

Publisher
Springer Journals
Copyright
Copyright © Springer Science+Business Media LLC 2021
ISSN
1066-5285
eISSN
1573-9171
DOI
10.1007/s11172-021-3358-1
Publisher site
See Article on Publisher Site

Abstract

The reaction of cobalt(ii) iodide with 1,4-bis(2,4,6-trimethylphenyl)-1,4-diazabuta-1,3-diene (Mes-DAD) in anhydrous acetonitrile afforded the mononuclear complex [CoI2(Mes-DAD)] (1). The crystal structure of the complex was established by single-crystal X-ray diffraction. The phase purity was confirmed by powder X-ray diffraction. The zero-field splitting parameter (D = 17.2 cm−1) and the intermolecular exchange coupling parameter (zJ = −0.78 cm−1) were determined from magnetochemical studies of complex 1 in a direct current magnetic field of 5 kOe in the temperature range of 2–300 K. Magnetic measurements in an alternating magnetic field showed the absence of slow relaxation of the magnetization.

Journal

Russian Chemical BulletinSpringer Journals

Published: Dec 1, 2021

Keywords: cobalt(ii) complexes; redox-active ligand; diazabutadiene; structure; magnetic properties

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