摘要
A new luminescent Cd（Ⅱ） compound, [Cd3（OABDC）2（bipy）2（H2O）2]n （1, H3OABDC = 5-oxyacetateisophthalic acid, bipy = 4,4＇-bipyridine）, has been prepared by the assembly of Cd（Ⅱ） salt with the mixed ligands of H3OABDC and 4,4＇-bipy under hydrothermal conditions. The crystal structure is of monoclinic, space group P2/n with a = 13.6730（5）, b = 10.1265（3）, c = 15.9752（4） , β = 103.061（3）o, V = 2154.70（11） 3, C40H34Cd3N4O18, Mr = 1195.94, Z = 2, Dc = 1.843 g/cm3, F（000） = 1180, μ = 1.549 mm-1, the final R = 0.0409 and wR = 0.1291 for 2746 observed reflections （I 2σ（I））. Single-crystal X-ray structural analysis reveals that compound 1 features a self-penetrating two-dimensional （2D） layered structure. According to topology analysis, this 2D framework can be characterized as a （3,4）-connected （6.72）2 （62.8）2 （73.8.102） net that has never been reported before. Finally, these 2D layers are further linked by intermolecular hydrogen bonds and π…π interactions to form a three-dimensional （3D） supramolecular framework. Moreover, Compound 1 exhibits strong blue photoluminescence at room temperature.
A new luminescent Cd（Ⅱ） compound, [Cd3（OABDC）2（bipy）2（H2O）2]n （1, H3OABDC = 5-oxyacetateisophthalic acid, bipy = 4,4＇-bipyridine）, has been prepared by the assembly of Cd（Ⅱ） salt with the mixed ligands of H3OABDC and 4,4＇-bipy under hydrothermal conditions. The crystal structure is of monoclinic, space group P2/n with a = 13.6730（5）, b = 10.1265（3）, c = 15.9752（4） , β = 103.061（3）o, V = 2154.70（11） 3, C40H34Cd3N4O18, Mr = 1195.94, Z = 2, Dc = 1.843 g/cm3, F（000） = 1180, μ = 1.549 mm-1, the final R = 0.0409 and wR = 0.1291 for 2746 observed reflections （I 2σ（I））. Single-crystal X-ray structural analysis reveals that compound 1 features a self-penetrating two-dimensional （2D） layered structure. According to topology analysis, this 2D framework can be characterized as a （3,4）-connected （6.72）2 （62.8）2 （73.8.102） net that has never been reported before. Finally, these 2D layers are further linked by intermolecular hydrogen bonds and π…π interactions to form a three-dimensional （3D） supramolecular framework. Moreover, Compound 1 exhibits strong blue photoluminescence at room temperature.
基金
Supported by the 973 program of China (Grants 2007CB815302, 2009CB939803)
the Chinese Academy of Sciences (Grants KJCX2.YW.319 and KJCX2.YW.M10)
Natural Science Foundation of Fujian Province (2009J05041)
the Knowledge Innovation Program of the Chinese Academy of Sciences
the Fund of Fujian Key Laboratory of Nanomaterials (2006L2005)
