摘要
The assembly of metal ions Zn2＋, Co2＋ and H2E2Ge2O3 ligand under mild hydro- thermal conditions leads to a mixed 3D transition zinc-cobalt-organogermanate framework, Zn0.88Co0.12（E2Ge2O3） （1, E = -CH2CH2COO-）. The structure was determined by single-crystal X-ray diffraction and further characterized by IR spectroscopy, elemental analysis, energy- dispersive X-ray analysis, inductively coupled plasma, powder X-ray diffraction, thermogra- vimetric analysis and fluorescence spectroscopy. Compound 1 crystallizes in the chiral space group P212121, with a = 4.9096（5）, b = 8.9031（11）, c = 24.046（3） A, V = 1051.0（2） A3, C6H8Ge2O7Zn0.88Co0.12, Mr = 401.88, Z = 4, Dc = 2.540 g.cm-1,μ = 7.875 mm-1, F（000） = 775, GOF= 1.016, the final R = 0.0324 and wR = 0.0642. The structure ofl is built up by Ge-O sheets with Ge6 rings and Zn/Co-carboxyl layers. It should be mentioned that although the whole E2Ge2O32- ligand exhibits only one kind of coordination mode, it plays two roles in forming the structure： SBU and linker. In this situation, the E group of H2E2Ge2O3 ligand becomes a determining factor for structural dimensionality. In addition, it displays blue-violet emission light and shows high thermostability.
The assembly of metal ions Zn2＋, Co2＋ and H2E2Ge2O3 ligand under mild hydro- thermal conditions leads to a mixed 3D transition zinc-cobalt-organogermanate framework, Zn0.88Co0.12（E2Ge2O3） （1, E = -CH2CH2COO-）. The structure was determined by single-crystal X-ray diffraction and further characterized by IR spectroscopy, elemental analysis, energy- dispersive X-ray analysis, inductively coupled plasma, powder X-ray diffraction, thermogra- vimetric analysis and fluorescence spectroscopy. Compound 1 crystallizes in the chiral space group P212121, with a = 4.9096（5）, b = 8.9031（11）, c = 24.046（3） A, V = 1051.0（2） A3, C6H8Ge2O7Zn0.88Co0.12, Mr = 401.88, Z = 4, Dc = 2.540 g.cm-1,μ = 7.875 mm-1, F（000） = 775, GOF= 1.016, the final R = 0.0324 and wR = 0.0642. The structure ofl is built up by Ge-O sheets with Ge6 rings and Zn/Co-carboxyl layers. It should be mentioned that although the whole E2Ge2O32- ligand exhibits only one kind of coordination mode, it plays two roles in forming the structure： SBU and linker. In this situation, the E group of H2E2Ge2O3 ligand becomes a determining factor for structural dimensionality. In addition, it displays blue-violet emission light and shows high thermostability.
基金
supported by the Natural Science Fund for Young Scholars of Fujian Province(No. 2011J05018)
the Fund for Young Scholars from Fujian Agriculture and Forestry University (No. 2011xjj06)
