A W(V)-Mn(III) bimetallic assembly built by manganese(III) Schiff-base and octacyanotungstate(V) building blocks: Structure and magnetic property

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• 作者：Chun Yang ; Qing-Lun Wang ; Cheng-Yun Su ; Lin-Na Hu ; Li-Cun Li ; Dai-Zheng Liao
• 关键词：Octacyanotungstate(V) ; Manganese(III) Schiff-base ; Magnetic properties ; Crystal structure
• 刊名：Inorganic Chemistry Communications
• 出版年：February, 2014
• 年：2014
• 卷：40
• 期：Complete
• 页码：26-30
• 全文大小：687 K

文摘

A new cyano-bridged bimetallic complex [Mn(5-Clsaltmen) (H₂O)(CH₃OH)]{[Mn(5-Clsaltmen)(H₂O)] W(CN)₈[Mn(5-Clsaltmen)(CH₃OH)]}路3.5H₂O路2CH₃OH [5-Clsaltmen = N,N鈥?/em>-(1,1,2,2-tetramethylethylene) bis(5-chlorosalicylideneiminato) dianion] (1) was synthesized and structurally characterized by X-ray single-crystal diffraction. The structure of 1 consists of the asymmetric V-shaped Mn-W-Mn trinuclear anions, in which W(V) coordinates with [Mn(5-Clsaltmen)(H₂O)]⁺ and [Mn(5-Clsaltmen)(CH₃OH)]⁺ through the neighboring cyano bridges, isolated cations [Mn(5-Clsaltmen) (H₂O)(CH₃OH)]⁺ and lattice water and methanol molecules. The magnetic studies for 1 reveal that antiferromagnetic interactions (J = 鈭?#xA0;4.6 cm^鈭?#xA0;1) between W^V and Mn^III centers is operating within the trimer.