含二维水网的三维超分子[Ni(phen)_2(H_2O)_2][Ni(PDC)_2]·7H_2O

Three-dimensional Supramolecule of [Ni(phen)_2(H_2O)_2][Ni(PDC)_2]·7H_2O with Two-dimensional Water Network

在水溶液中合成了离子型配合物[Ni(phen)2(H2O)2][Ni(PDC)2]?7H2O(H2PDC=吡啶-2,6-二甲酸,phen=1,10-菲啰啉).通过元素分析、红外光谱、单晶X射线衍射以及热重分析对配合物进行了表征.晶体数据解析表明,化合物属于三斜晶系,空间群为P1,a=1.0092(4)nm,b=1.4599(6)nm,c=1.4933(5)nm,α=73.982(2)°,β=78.652(2)°,γ=75.184(3)°,V=2.0256(13)nm3,Z=2,F(000)=1004,μ=1.014mm-1,R1=0.0538,wR2=0.1493.配合物中的结晶水分子形成一个(H2O)12水簇,(H2O)12水簇通过氢键连接为二维水网,最终构成三维超分子网络.

A novel ionic complex of [Ni（phen）2（H2O）2][Ni（PDC）2]·7H2O was synthesized in aqueous solution （HEPDC=pyridine-2,6-dicarboxylic acid; phen=1,10-phenanthroline）. Elemental analysis, IR spectroscopy, single X-ray diffraction and thermogravimetric analysis for the title complex are presented. Crystal data： triclinic, space group P1, a=1.0092（4） nm, b= 1.4599（6） nm, c=1.4933（5） nm, α=73.982（2）°, β= 78.652（2）°, γ= 75.184（3）°, V=2.0256（13） nm^2, Z=2, F（000）= 1004, μ= 1.014 mm^-1, R1=0.0538, wR2= 0.1493 [I〉2.00δ（I）]. It is very interesting that lattice water forms a cluster （H2O）12, which gives rise to a novel 2D water network through hydrogen bonding. Furthermore, the interactions among the 2D water networks lead to a 3D supramolecule.