双核锰配合物的合成、表征和性质

SYNTHESIS,CHARACTERIZATION AND PROPERTIES OF DINUCLEAR MANGANESE(Ⅱ) COMPLEXES

报道了对称的八齿（Ｎ６Ｏ２型）双核配体Ｎ，Ｎ，Ｎ，Ｎ－四（２－苯并咪唑甲基）－１，４－二乙氨基乙二醚（ＥＧＴＢ）及两种含锰（Ⅱ）双核配合物：［Ｍｎ２ＥＧＴＢ（ＯＡｃ）２］（ＢＰｈ４）２·３Ｈ２Ｏ（Ⅰ），［Ｍｎ２ＥＧＴＢ（ＯＡｃ）Ｃｌ］Ｃｌ２·２ＣＨ３ＯＨ·Ｈ２Ｏ（Ⅱ）．对（Ⅰ），（Ⅱ）进行了１ＨＮＭＲ、ＵＶ－Ｖｉｓ、摩尔电导、中远红外、ＥＳＲ和循环伏安研究．初步推测配合物（Ⅰ）和（Ⅱ）分别具有二个乙酸桥连和一个乙酸及氯桥连八面体配位结构．这两种配合物或许可作为过氧化氢酶。

The synthesis of a symmetric,octadentate(N 6O 2) ligand [N,N,N,N tetrakis(2 benzimidazolylmethyl) 1,4 diethylene amino] glycol ether (EGTB) and two containing manganese(Ⅱ) dinuclear complexes [Mn 2EGTB(OAc) 2](BPh 4) 2·3H 2O(Ⅰ),[Mn 2EGTB(OAc)(Cl)]Cl 2·2CH 3OH·H 2O(Ⅱ) are reported.Ligand EGTB is characterized by 1H NMR,UV Vis,IR spectrum. The elemental analyses、UV Vis、molar conductivity、middle and far IR、ESR and cyclic voltammogram of two complexes have been studied.Their coordination geometry may be close to octahedral or distorted octahedral.These two complexes are good structure models of the catalase and ribonucleotide reductase.