新型邻菲咯啉镁(II)配合物[Mg(H_2O)_4(phen)](phen)[C_6H_4(COO)_2]·H_2O的水热合成和晶体结构

合成了新型邻菲咯啉镁(II)配合物 [Mg(H2O)4(phen)](phen)[C6H4(COO)2]?H2O, 并对其进行了元素分析、IR、TG、X-射线衍射等表征。单晶衍射结果表明, 该配合物晶体属单斜晶系, 空间群为 P21/c, 晶胞参数:a = 11.873(2), b = 31.992(6), c = 8.144(2) ?, β = 93.98(3), V = 3085.9(11)?3, Z = 4, F(000) = 1336, Dc = 1.375 g/cm3, μ(MoKα) = 0.120 mm?1。对于 6889[ Rint = 0.0264]个独立衍射点, 有 3939 个可观测点满足(I≥2σ (I)), 最终的偏离因子 R = 0.0430, wR = 0.1294。标题配合物由 1 个邻菲咯啉合镁阳离子[Mg(H2O)4(phen)]2+、1 个邻苯二甲酸根阴离子C6H4(COO)2)2–、1 个溶剂邻菲咯啉分子和 1 个结晶水分子组成。中心 Mg(II)离子为六配位, 六个配位原子形成畸变的 MgN2O4八面体构型。

Hydrothermal Synthesis and Crystal Structure of Tetraaquq(phen-N,N'''')magnesium(II) Phthalic Acid Complex, [Mg(H_2O)_4(phen)](phen)[C_6H_4(COO)_2](H_2O)(phen = 1,10-Phenanthroline)

A novel phthalic acid magnesium complex [Mg(H2O)4(phen)](phen)[C6H4(COO)2](H2O) (phen = 1,10- phenanthroline) has been hydrothermally synthesized and structurally characterized by elemental analyses, IR, TG analyses and single-crystal X-ray diffraction, showing the crystal belongs to the monoclinic system, space group P21/c with a = 11.873(2), b = 31.992(6), c = 8.144(2) ?, β = 93.98(3)°, C32H30MgN4O9, Mr = 638.91, V = 3085.9(11) ?3, Z = 4, F(000) = 1336, Dc = 1.375 g/cm3, μ(MoKα) = 0.120 mm?1, the final R = 0.0430 and wR = 0.1294 for 3939 observed reflections with I > 2σ(I). The title compound consists of [Mg(H2O)4(phen)]2+ cations, phthalic acid anions as well as phen and H2O molecules. Within the complex cations, each Mg atom is coordinated by two nitrogen atoms from one chelating 1,10-phenanthroline ligand and four O atoms from four different water molecules to form a distorted MgN2O4 octahedron.