The syntheses, structures, and magnetic properties of two mononuclear manganese(II) complexes involving <i>in situ</i> hydrothermal decarboxylation
作者:Zhong-Xiang Du、Jun-Xia Li、Shi-Jiang Liu、Zhi-Qiong Wang、Qing-Jie Pan
DOI:10.1515/znb-2020-0036
日期:2020.8.27
[Mn(5-Br-pyc)(bipy)(H2O)(Cl)]·2H2O (2) (3-Br-H2pydc = 3-Br-pyridine-2,6-dicarboxylic acid, 5-Br-Hpyc = 5-Br-pyridine-2-carboxylic acid, bipy = 2,2′-bipyridine) have been synthesized by traditional solution reaction and hydrothermal reaction, respectively. In both compounds, the MnII center is six-coordinated in a distorted octahedral geometry, formed by one tridentate chelate 3-Br-pydc dianion and three
摘要 两种新的单核化合物 [Mn(3-Br-pydc)(H2O)3] (1) 和 [Mn(5-Br-pyc)(bipy)(H2O)(Cl)]·2H2O (2) (3 -Br-H2pydc = 3-Br-吡啶-2,6-二羧酸,5-Br-Hpyc = 5-Br-吡啶-2-羧酸,bipy = 2,2'-联吡啶)已通过传统溶液合成反应和水热反应。在这两种化合物中,MnII 中心在扭曲的八面体几何形状中是六配位的,由一个三齿螯合物 3-Br-pydc 二价阴离子和三个水分子在 1 中形成,而配位球由一个双齿螯合物 5-Br-pyc 阴离子组成, 一个双基,一个水分子和一个氯阴离子在 2 (MnNO5 为 1 和 MnN3O2Cl 为 2)。O-H⋯O 氢键、Br⋯O 卤素键和/或 π-π 堆叠有助于构建 1 和 2 的三维(3D)网络结构。值得注意的是,5-Br-Hpyc 配体是通过 3-Br-H2pydc