A New Metal-organic Framework Constructed from Flexible Polycarboxylate Acid and Rigid Imidazole-based Ligands

作者：Chen Shui Sheng^*; Qiao Rui; Liu Peng De

来源：Chinese Journal of Structural Chemistry, 2012, 31(10): 1512-1517.

• synthesis
• nickel(II) complex
• crystal structure

A new complex, [Ni-3(L)(2)(BTA)(2)]center dot 2H(2)O (1, L = 1,4-di(1H-imidazol-4-yl)benzene, H(3)BTA = benzene-1,3,5-triacetic acid), has been hydrothermally prepared and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis, TG and PXRD. The complex crystallizes in monoclinic, space group P (1) over bar with a = 9.0303(12), b = 10.0796(13), c = 12.7966(17) angstrom, alpha = 99.268(2), beta = 94.490(2), gamma = 103.722(3)degrees, V = 1108.5(3) angstrom(3), Z = 2, C48H38N8O14Ni3, M-r = 1126.99, D-c = 1.688 g/cm(3), mu = 1.344 mm(-1), S = 1.001, F(000) = 578, the final R = 0.0389 and wR = 0.0895 for 3083 observed reflections (I > 2 sigma(I)). In the title complex, the flexible BTA(3-) ligands utilize oxygen atoms of carboxylate groups to coordinate with Ni(II) ions to form two-dimensional double-layer networks which are further pillared into a three-dimension framework via the rigid ditopic ligand L. Topological analysis revealed that complex 1 is a typical (3,8)-connected tfz-d 3D network based on the trinuclear [Ni-3(CO2)(6)N-4] subunits.

• 出版日期2012
• 单位阜阳师范学院