The title compound （H3tpda）2[CdCl4] （H2tpda = 2,6-bis（2-pyridylamino）pyridi-ne） was synthesized by the reaction of CdCl2 with H2tpda in methanol under acidic condition. Singlecrystal X-ray analysis reveals that ...The title compound （H3tpda）2[CdCl4] （H2tpda = 2,6-bis（2-pyridylamino）pyridi-ne） was synthesized by the reaction of CdCl2 with H2tpda in methanol under acidic condition. Singlecrystal X-ray analysis reveals that the compound crystallizes in monoclinic, space group P21/n with a = 13.377（3）, b = 16.978（3）, c = 14.328（3） A, β = 94.75（3）°, V = 3243.1（11） A^3, Z = 4, De = 1.603 g/cm^3,μ = 1.042 mm^-1, F（000） = 1576, C30H28CdCl4N10, Mr = 782.82, T = 291（2） K, R = 0.0433 and wR = 0.0848 for observed 4554 reflections with I 〉 2σ（I）. The cadmium（Ⅱ） atom in the complex anion is tetrahedrally coordinated by four chlorine atoms, whereas, in each [H3tpda]＋ cation, one pyridyl nitrogen is protonated. A 3D network is formed by multiple intermolecular hydrogen bonds between the cations and anions as well as π-π interactions among the pyridyl rings.展开更多
基金This work was supported by the National Natural Science Foundation of China (30270321)
文摘The title compound （H3tpda）2[CdCl4] （H2tpda = 2,6-bis（2-pyridylamino）pyridi-ne） was synthesized by the reaction of CdCl2 with H2tpda in methanol under acidic condition. Singlecrystal X-ray analysis reveals that the compound crystallizes in monoclinic, space group P21/n with a = 13.377（3）, b = 16.978（3）, c = 14.328（3） A, β = 94.75（3）°, V = 3243.1（11） A^3, Z = 4, De = 1.603 g/cm^3,μ = 1.042 mm^-1, F（000） = 1576, C30H28CdCl4N10, Mr = 782.82, T = 291（2） K, R = 0.0433 and wR = 0.0848 for observed 4554 reflections with I 〉 2σ（I）. The cadmium（Ⅱ） atom in the complex anion is tetrahedrally coordinated by four chlorine atoms, whereas, in each [H3tpda]＋ cation, one pyridyl nitrogen is protonated. A 3D network is formed by multiple intermolecular hydrogen bonds between the cations and anions as well as π-π interactions among the pyridyl rings.
