论文部分内容阅读
利用2-磺基对苯二甲酸钠(2-NaH2stp)、2,4,6-三(2-吡啶)-5-嗪(tpt)和水合醋酸锰在溶剂热条件下合成了一种二维的新型配合物[Mn3(stp)2(tpt)3(H2O)2](H2O)2(1)。结构分析表明,该配合物中有两个晶体学独立的锰离子,Mn1与6个氧原子配位,Mn2与3个氧原子和3个氮原子配位,均处于八面体构型。Mn2离子通过stp配体链接成双螺旋一维链,而Mn1离子将一维链进一步链接成二维层结构,层间通过晶格水分子的氢键和tpt分子间的π…π堆积作用堆垛成三维超分子结构。配合物1的磁学性质研究表明,金属离子Mn(Ⅱ)之间存在弱的反铁磁相互作用。
A two-dimensional (2D) method was developed using solvothermal method using sodium 2-sulfoterephthalate (2-NaH2stp), 2,4,6-tris (2-pyridyl) New complex [Mn3 (stp) 2 (tpt) 3 (H2O) 2] (H2O) 2 (1). Structural analysis shows that there are two crystallographic independent manganese ions in the complex, Mn1 coordinates with six oxygen atoms, and Mn2 coordinates with three oxygen atoms and three nitrogen atoms, all in octahedral configuration. Mn2 ions are linked into a double-helix one-dimensional chain by stp ligands, while Mn1 ions further link the one-dimensional chain into a two-dimensional layer structure, and the layers pass through hydrogen bonds of lattice water molecules and π ... π stacking action between tpt molecules Stacked into three-dimensional supramolecular structure. The magnetic properties of complex 1 showed that weak antiferromagnetic interaction exists between the metal ions Mn (Ⅱ).