文献类型：期刊文献

英文题名：A 1,2,4-Triazole-based Polynuclear Mixed-valence MnIIMnIII Complex: Synthesis, Characterization, and Magnetic Property

作者：Liu, Hui[1];Sui, Xin[1];Zhang, Jingyan[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Sch Pharm, Shanghai Key Lab New Drug Design, Shanghai 200237, Peoples R China

年份：2015

卷号：641

期号：14

起止页码：2511

外文期刊名：ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000368040700025)】；

基金：This work was supported by National Natural Science Foundation China (No. 21001044, 31070742) and the State Key Laboratory of Bioreactor Engineering (No. 2060204).

语种：英文

外文关键词：Mixed-valence (MnMnIII)-Mn-II complex; 1,2,4-Triazole; Manganese; Crystal structure; Magnetic property

摘要：A mixed-valence Mn complex {[(MnMnIII)-Mn-II(HL)(2)(4,4'-bpy)( H2O)(2)]center dot(ClO4)(DMF)(3)(4,4'-bpy)(0.5)}(n) (1) [H2L = 3-(2-phenol)-5-( pyridin-2-yl)-1,2,4-triazole] was synthesized and characterized by X-ray single-crystal structure analysis and magnetic susceptibility. Single- crystal X-ray analysis revealed that complex 1 has a dinuclear core, in which adjacent central Mn-III atoms are linked by 4,4'-bipyridine to form an infinite one-dimensional (1D) molecular configuration. According to the Mn surrounding bond lengths and bond valence sum (BVS) calculations, we demonstrated that the Mn atom coordinated to the pyridine N atoms is in the +2 oxidation state, while another Mn atom coordinated to the phenolic oxygen atoms is in the +3 oxidation state. Magnetic susceptibility data of the complex 1 indicate that the ferromagnetic interaction dominates in this complex.