摘要
Two new isomorphous metal-organic coordination polymers, [Zn（dhmdb）（2,2＇- bpy）]n 1 and [Zn（dhmdb）（1,10-phen）]n 2, have been obtained under hydrothermal reactions from 4,4＇-（dihydroxymethylene）dibenzoic acid （H2dhmdb）, Zn（NO3）2·6H2O and 2,2＇-pyridine or 1,10- phenanthroline, respectively. Compounds 1 and 2 have been characterized by FT-IR spectroscopy, thermal analysis and single-crystal X-ray diffraction. The zigzag chains of 1 and 2 are linked into three-dimensional supramolecular networks by both O–H…O hydrogen bonds and π…π stacking interactions. Crystal data for 1： ZnC25H18N2O6, Mr = 507.78, orthorhombic, space group Pbca, a = 14.031（3）, b = 10.826（2）, c = 27.343（6）, V = 4153.5（14）3, Z = 8, Dc = 1.624 g/cm3, F（000） = 2080, μ = 1.231 mm-1, R = 0.0699 and wR = 0.1829. Crystal data for 2： ZnC27H18N2O6, Mr = 531.80, orthorhombic, space group Pbca, a = 13.796（3）, b = 10.809（2）, c = 28.612（6）, V = 4266.8（15）3, Z = 8, Dc = 1.656 g/cm3, F（000） = 2176, μ = 1.203 mm-1, R = 0.0454 and wR = 0.1399.
Two new isomorphous metal-organic coordination polymers, [Zn（dhmdb）（2,2＇- bpy）]n 1 and [Zn（dhmdb）（1,10-phen）]n 2, have been obtained under hydrothermal reactions from 4,4＇-（dihydroxymethylene）dibenzoic acid （H2dhmdb）, Zn（NO3）2·6H2O and 2,2＇-pyridine or 1,10- phenanthroline, respectively. Compounds 1 and 2 have been characterized by FT-IR spectroscopy, thermal analysis and single-crystal X-ray diffraction. The zigzag chains of 1 and 2 are linked into three-dimensional supramolecular networks by both O–H…O hydrogen bonds and π…π stacking interactions. Crystal data for 1： ZnC25H18N2O6, Mr = 507.78, orthorhombic, space group Pbca, a = 14.031（3）, b = 10.826（2）, c = 27.343（6）, V = 4153.5（14）3, Z = 8, Dc = 1.624 g/cm3, F（000） = 2080, μ = 1.231 mm-1, R = 0.0699 and wR = 0.1829. Crystal data for 2： ZnC27H18N2O6, Mr = 531.80, orthorhombic, space group Pbca, a = 13.796（3）, b = 10.809（2）, c = 28.612（6）, V = 4266.8（15）3, Z = 8, Dc = 1.656 g/cm3, F（000） = 2176, μ = 1.203 mm-1, R = 0.0454 and wR = 0.1399.
基金
supported by the National Natural Science Foundation of China(21071087,91122012)
the Open Foundation of State Key Laboratory of Structural Chemistry(20090057)
the K.C.Wong Magna Fund in Ningbo University
