Transition metal-induced reductive coupling of 2-amino-1,3,4-thiadiazole with acetonitrile: Synthesis and structural characterization of two Co(III) complexes with amidine

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• 作者：Yuheng Deng ; Juan Liu ; Qingjuan Zhang ; Fengge Li ; Yongli Yang ; Peizhou Li ; Jie Ma
• 关键词：2-Amino-1 ; 3 ; 4-thiadiazole ; Amidine complex ; Cobalt complex ; Crystal structure ; Cyclic voltammetry
• 刊名：Inorganic Chemistry Communications
• 出版年：2008
• 出版时间：April 2008
• 年：2008
• 卷：11
• 期：4
• 页码：433-437
• 全文大小：478 K

文摘

A planar square Co(III) complex, [Co(HL)(H₂L)](ClO₄)₂ (1) (H₂L = N-(1,3,4-thiadiazol-2-yl)acetimidamide, C₄H₆N₄S), was synthesized by mixing Co(II) salt with 2-amino-1,3,4-thiadiazole in acetonitrile, and the subsequent addition of pyridine led to an octahedral Co(III) complex, [Co(HL)₂(Py)₂](ClO₄) · CH₃CN (2) (Py = pyridine). To mix 2-amino-1,3,4-thiadiazole, pyridine and cobalt perchlorate directly into acetonitrile can also afford complex 2 in higher yield. Complexes 1 and 2 have been characterized by X-ray single crystal diffraction and cyclic voltammetry, and the reaction mechanism has been discussed.