Synthesis and Crystal Structure of One Mixed-ligand Coordination Polymer Based on the Novel Terphenyl-2,5,2',5'-tetracarboxylic Acid Ligand  

作　　者：张修堂 张炉青 张梁栋 范黎明 魏培海 张书香 

机构地区：[1]Advanced Material Institute of Research,Department of Chemistry,Qilu Normal University [2]Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials,University of Jinan 250022 [3]Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials,University of Jinan

出　　处：《Chinese Journal of Structural Chemistry》2012年第10期1518-1523,共6页结构化学（英文）

基　　金：supported from the Opening Foundation of Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials,the National Natural Science Foundation of China(20873150);the Natural Science Foundation of Shandong Province(ZR2010BQ023);the Outstanding Middle-aged Scientists Foundation of Shandong Province(2008BS04031)

摘　　要：Solvothermal reaction of aromatic terphenyl-2,5,2＇,5＇-tetracarboxylic acid （Hnqptc） ligand and the transitional metal cation of Mn11 in the presence of 3-（2-pyridyl）pyrazole （pp） affords one new coordination polymer, [Mn（qptc）0.5（pp）2]n·n（H2O） （1）. The structure has been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR, TGA, and magnetism. The carboxyl groups of qptc4 exhibit a μ1-η1：η0 coordination mode, and the qptc4- acts as a H-shaped ligand linking the Mn11 centers together to form a 2D polymeric [Mn（qptc）0.5]n layer. The crystal of 1 crystallizes in orthorhombic, space group Pbca with a = 9.3119（12）, b = 20.848（3）, c = 26.134（3） A, V= 5073.4（11） A3, Z= 8, C27HIgMnN6O5,Mr=562.42, Dc = 1.473 g/cm3, F（000） = 2304 and μ（MoKa） = 0.571 mm-1. The final R = 0.0468 and wR = 0.1196 for 4429 observed reflections with I 〉 2σ（I） and R = 0.0797 and wR = 0.1383 for all data.Solvothermal reaction of aromatic terphenyl-2,5,2＇,5＇-tetracarboxylic acid （Hnqptc） ligand and the transitional metal cation of Mn11 in the presence of 3-（2-pyridyl）pyrazole （pp） affords one new coordination polymer, [Mn（qptc）0.5（pp）2]n·n（H2O） （1）. The structure has been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR, TGA, and magnetism. The carboxyl groups of qptc4 exhibit a μ1-η1：η0 coordination mode, and the qptc4- acts as a H-shaped ligand linking the Mn11 centers together to form a 2D polymeric [Mn（qptc）0.5]n layer. The crystal of 1 crystallizes in orthorhombic, space group Pbca with a = 9.3119（12）, b = 20.848（3）, c = 26.134（3） A, V= 5073.4（11） A3, Z= 8, C27HIgMnN6O5,Mr=562.42, Dc = 1.473 g/cm3, F（000） = 2304 and μ（MoKa） = 0.571 mm-1. The final R = 0.0468 and wR = 0.1196 for 4429 observed reflections with I 〉 2σ（I） and R = 0.0797 and wR = 0.1383 for all data.

关 键 词：terphenyl-2 5 2＇ 5＇-tetracarboxylic acid 3-（2-pyridyl）pyrazole manganese（II） 

分 类 号：O631.3[理学—高分子化学]