A dimanganese(II) complex with bridging chlorides: Synthesis, electrochemistry, magnetic behavior, structure and bonding

被引：7
作者：
Braeuer, Bjoern [1 ]
Schaarschmidt, Dieter [1 ]
Flohrer, Claudia [1 ]
Rueffer, Tobias [1 ]
Tripke, Sascha [1 ]
Hildebrandt, Alexander [1 ]
Walfort, Bernhard [1 ]
Sorace, Lorenzo [2 ,3 ]
Lang, Heinrich [1 ]
机构：
[1] Tech Univ Chemnitz, Inst Chem, Dept Inorgan Chem, D-09107 Chemnitz, Germany
[2] Univ Florence, Dept Chem, I-50019 Florence, Italy
[3] Univ Florence, INSTM, I-50019 Florence, Italy
来源：
INORGANICA CHIMICA ACTA | 2011年 / 365卷 / 01期
关键词：
Manganese; Chloride; Electrochemistry; Magnetic; Susceptibility; Solid state structure; DENSITY-FUNCTIONAL THEORY; DINUCLEAR MN COMPLEXES; CRYSTAL-STRUCTURES; MANGANESE(II) COMPLEXES; BINUCLEAR; LIGANDS; BASE; TRANSFORMATION; COORDINATION; MONONUCLEAR;
D O I：
10.1016/j.ica.2010.09.033
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The synthesis of dimeric [Mn2Cl2(mu-Cl)(2)(dipa)(2)]center dot MeOH (3) (dipa = dipyridylmethylamine) from [MnCl2(H2O)(4)] (1) and dipa (2) and its structural characterization is reported. In the solid state complex 3 is dimeric and possesses crystallographically imposed C-2 symmetry, which differs from similar dimanganese(II) complexes showing an inversion symmetry for the central Mn(mu-Cl)(2)Mn arrangement. Each manganese atom is thereby bound by three nitrogen atoms from a facially coordinated dipa ligand, and three chlorides (1 terminal and 2 mu-bridging) in an octahedrally distorted fashion. The cylovoltammogram of 3 displays that the two manganese(II) ions can independently be oxidized. The magnetic properties of 3 were determined by susceptibility measurements versus temperature. The intramolecular J parameter was determined to a value of J = (-5.2 +/- 0.5) cm (1). (C) 2010 Elsevier B. V. All rights reserved.
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页码：277 / 281
页数：5
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