Two new mononuclear cobalt(II) complexes of pyrazole-based ligands: synthesis, structures and magnetic studies

被引：0
|
作者：
Abhimanyu Jana
Malay Dolai
Bikash Kumar Shaw
Shyamal Kumar Saha
Mahammad Ali
机构：
[1] Jadavpur University,Department of Chemistry
[2] Indian Association for the Cultivation of Science,Department of Materials Science
来源：
Transition Metal Chemistry | 2016年 / 41卷
关键词：
Magnetic Anisotropy; Angular Distortion; Supramolecular Interaction; Tripodal Ligand; Magnetostructural Correlation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We have synthesized two mononuclear cobalt(II) complexes (1 and 2) of pyrazole-based bidentate (NN) and tridentate (NNN) tripodal ligands. X-ray crystal structure determination reveals that complex 1 has a tetrahedral geometry, while complex 2 has a trigonal–bipyramidal geometry. Both the complexes have been characterized by variable-temperature magnetic measurements between 2 and 300 K. A weak ferromagnetic exchange interaction (J = +1.5 cm−1) is observed for complex 2. Due to the presence of supramolecular CH···Cl and π···π interactions, a good magnetostructural correlation was found between the D parameter and angular distortion (δ) for complex 1 and related complexes reported in the literature.
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页码：347 / 355
页数：8
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