摘要
以桥联配体5-[(蒽-9-亚甲基)-氨基]-间苯二甲酸和Mn(CH_3COO)_2·4H_2O为原料,通过溶剂热法成功合成了一个新型三维超分子结构的配位聚合物{[Mn_2(H_2O)_4(CH_3OH)(C_2H_5OH)(L)_2]·(CH_3OH)_2·H_2O}n(H_2L=5-[(蒽-9-亚甲基)-氨基]-间苯二甲酸),并通过红外光谱、元素分析、X射线粉末衍射、单晶X射线衍射和热重分析,对配位聚合物的单晶结构进行了表征。该配位聚合物属于三斜晶系,空间群P-1,晶胞参数:a=9.6850(19)nm,b=14.278(3)nm,c=17.666(4)nm,α=87.15(3)°,β=89.99(3)°,γ=83.96(3)°,V=2426.3(8)nm^3,Z=2。该晶体结构为一维配位链,通过链与链之间的π…π相互作用和氢键形成了三维超分子结构。此外,在室温条件下,固态荧光测试表明配体及其配位聚合物分别在456 nm(λ_(ex)=417 nm)和506 nm(λ_(ex)=402 nm)具有较强的荧光。
A novel coordination polymer, poly[ [ tetraaqua(methanol) (ethanol) bis( μ-5-[ ( anthracen-9- ylmethyl ) -amino ] -isophthalicate acid- κ4O1, O2 : O1, O2′ ) manganese ( II ) ]bis (methanol) monohydrate ], { [Mn2 ( H2O)4 ( CH3 OH) ( C2 H5 OH) ( L)2 ] ( CH3 OH)2 H2O}n was synthesized with bivalent nn ions. This coordination complex was structurally characterized by IR, elemental analysis, X-ray powder diffraction, single-crystal X-ray diffraction and thermogravimetric analysis. The coordination polymer belongs to the triclinic system, the space group: P-1. The unit cell parameters include: a = 9. 6850(19) nm, b=14.278(3) nm, c=17.666(4) nm, a=87.15(3)°,β=89.99(3)°, γ=83.96(3)°, V= 2426. 3 (8) nm3, Z = 2. It displays one-dimensional chain coordination network, and a 3D supramolecular networks formed by the π…π interactions and hydrogen bonds between the chains. Furthermore, solid - state fluorescence test showed that the ligand and its coordination polymer had strong fluorescence at 456 nm (λex =417 nm) and 506 nm (λex =402 nm) at room room temperature.
出处
《人工晶体学报》
CSCD
北大核心
2017年第5期786-791,共6页
Journal of Synthetic Crystals
基金
国家自然科学基金(21561009,21241008,21061005)
海南省国际合作项目(HJHZ2013-18)
关键词
一维配位聚合物
锰(Ⅱ)络合物
晶体结构
π…π相互作用
荧光性能
one-dimensional coordination polymer
manganese ( II ) complex
crystal structure
π…πinteraction
fluorescent property