...
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Novel Dinuclear Redox-isomeric Complexes with a Tetrapodal Pyridine-based Ligand
【24h】

Novel Dinuclear Redox-isomeric Complexes with a Tetrapodal Pyridine-based Ligand

机译:新型四核吡啶基配体的双核氧化还原异构体

获取原文
获取原文并翻译 | 示例
           

摘要

Tris-o-semiquinonato cobalt complexes react with a tetrapodal pyridine-derived ligand to form dinuclear cobalt compounds of general formula (OMP)[CoQ_2]_2, where OMP = 2,2′-(pyridine-2,6-diyl)bis(N~1,N~1,N~3,N~3-tetramethylpropane-1,3-diamine), Q = mono- or dianion of 3,6-di-tert-butyl-o-benzoquinone (complex 1) and it derivatives: 3,6-di-tert-butyl-4,5-N,N′-piperazino-o-benzoquinone (complex 2), and 3,6-di-tert-butyl-4-Cl-o-benzoquinone (complex 3). Single crystal X-ray crystallography of 1 and 3 indicates two bis-quinonato cobalt units bound by an OMP ligand, which acts as a bridge. Each central cobalt atom is chelated by one N~1,N~1,N~3,N~3-tetramethylpropane-1,3-diamine and two o-quinonato fragments. The nitrogen atom of the pyridine ring is uncoordinated. All complexes were characterized by NIR-IR and EPR spectroscopy, precise adiabatic vacuum calorimetry, and by variable-temperature magnetic susceptibility measurements. All data indicate a reversible thermally driven redox-isomeric (valence tautomeric) transformation in the solid state for all complexes.
机译:Tris-o-semiquinonato钴配合物与四足吡啶衍生的配体反应形成通式(OMP)[CoQ_2] _2的双核钴化合物,其中OMP = 2,2'-(吡啶-2,6-二基)双( N〜1,N〜1,N〜3,N〜3-四甲基丙烷-1,3-二胺),Q = 3,6-二叔丁基-邻苯醌的单或二价阴离子(配合物1),它的衍生物:3,6-二叔丁基-4,5-N,N'-哌嗪子基-邻苯醌(络合物2)和3,6-二叔丁基-4-Cl-邻苯醌(复杂3)。 1和3的单晶X射线晶体学表明两个被OMP配体(作为桥)结合的双喹啉钴单元。每个中心钴原子被一个N〜1,N〜1,N〜3,N〜3-四甲基丙烷-1,3-二胺和两个邻喹啉基片段螯合。吡啶环的氮原子不配位。通过NIR-IR和EPR光谱,精确的绝热真空量热法和可变温度磁化率测量对所有复合物进行表征。所有数据表明,对于所有配合物,固态都是可逆的热驱动氧化还原异构体(价互变异构体)转变。

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号