Heteroligand o-Semiquinonato-Formazanato Cobalt Complexes

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• 作者：Natalia A. Protasenko ; Andrey I. Poddel鈥檚ky ; Artem S. Bogomyakov ; Georgy K. Fukin ; Vladimir K. Cherkasov
• 刊名：Inorganic Chemistry
• 出版年：2015
• 出版时间：July 6, 2015
• 年：2015
• 卷：54
• 期：13
• 页码：6078-6080
• 全文大小：255K
• ISSN：1520-510X

文摘

Two novel heteroligand o-semiquinonato-formazanato cobalt complexes [Co(3,6-SQ)(Form)] (1) and [Co(3,6-SQ)₂(Form)] (2) (3,6-SQ is 3,6-di-tert-butyl-o-benzosemiquinonate radical anion; Form is 1,3,5-triphenylformazanate anion) were synthesized and characterized in detail. The molecular structures of [Co(3,6-SQ)(Form)] and [Co(3,6-SQ)₂(Form)] were determined by X-ray analysis. Magnetic susceptibility measurements and spectroscopic studies have shown that square-planar complex 1 is diamagnetic with a residual paramagnetism due to antiferromagnetic exchange metal鈥搇igand. Complex 2 includes cobalt(III) in the low-spin state and two anionic-radical o-semiquinonato and one formazanate ligand.