Nickel(II)-azido/thiocyanato complexes of 1-alkyl-2-(naphthylazo)imidazole

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• 作者：P. Bhunia ; U.S. Ray ; J. Cheng ; T.-H. Lu ; C. Sinha
• 关键词：Ni(II)-azido/thiocyanato complexes ; Naphthylazoimidazole ; X-ray structure ; Electrochemistry ; DFT calculation
• 刊名：Polyhedron
• 出版年：2008
• 出版时间：17 October 2008
• 年：2008
• 卷：27
• 期：15
• 页码：3191-3196
• 全文大小：805 K

文摘

[Ni(NaiR)₂(X)₂] (X = N₃ (3, 4) and NCS (5, 6) complexes are synthesized from the reaction of Ni(ClO₄)₂ · 6H₂O with 1-alkyl-2-(naphthyl-α/β-azo)imidazole (α/β-NaiR) and sodium azide (NaN₃) or ammonium thiocyanate (NH₄NCS) (1:2:2 molar ratio) in methanol solution. The complexes are characterized by elemental, spectroscopic and magnetic study. The distorted octahedral structure has been confirmed by single crystal X-ray diffraction study of [Ni(β-NaiEt)₂(NCS)₂] (6b). Cyclic voltammogram exhibits quasireversible oxidation response at 0.3–0.4 V which is corresponding to Ni(III)/Ni(II) couple along with ligand reductions at negative potential to SCE reference electrode.