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Two new Zn~Ⅱ coordination polymers,namely,[Zn L(o-bdc)]n(1) and [Zn L(mbdc)]_n·n H_2O(2)(L = 4?-(3-pyridyl)-3,2?:6?,3??-terpyridine,H_2(o-bdc) = benzene-1,2-dicarboxylic acid,H_2(m-bdc) = benzene-1,3-dicarboxylic acid),were synthesized by hydrothermal methods. The crystal structures have been determined by single-crystal X-ray diffraction. Compound 1 crystallizes in monoclinic C2/c space group,with a = 28.016(2),b = 11.3815(11),c = 19.8071(17) ?,β = 133.961(2)°,V = 4546.2(7) ?3,Z = 8,Mr = 539.83,Dc = 1.577 Mg/m~3,μ = 1.127 mm-1,F(000) = 2208,the final R = 0.0426 and w R = 0.0986 for 2875 observed reflections with I > 2σ(I) and displays a 1D coordination chain. While compound 2 crystallizes in monoclinic C2/c space group,with a = 15.6003(14),b = 11.9152(11),c = 26.633(3) ?,β = 94.320(2)°,V = 4936.5(8) ?~3,Z = 4,M_r = 1115.67,Dc = 1.496 Mg/m~3,μ = 1.043 mm~(-1),F(000) = 2272,the final R = 0.0499 and w R = 0.1342 for 2659 observed reflections with I > 2σ(I) and shows a classical 3D cds topological network with point symbol of {65.8}. Furthermore,thermal stability and luminescent properties of 1 and 2 have also been investigated.
Two new Zn ~ Ⅱ coordination polymers, namely, [Zn L (o-bdc)] n (1) and [Zn L (mbdc)] n n H 2 O (2) 3,2?: 6 ?, 3 ?? - terpyridine, H_2 (o-bdc) = benzene-1,2-dicarboxylic acid, H_2 (m-bdc) = benzene- Compound 1 crystallizes in monoclinic C2 / c space group with a = 28.016 (2), b = 11.3815 (11), c = 19.8071 (17) , β = 133.961 (2) °, V = 4546.2 (7) 3 3, Z = 8, Mr = 539.83, Dc = 1.577 Mg / m 3, μ = 1.127 mm -1, F 000 = 2208, the final R = 0.0426 and w R = 0.0986 for 2875 observed reflections with I> 2σ (I) and displays a 1D coordination chain. While compound 2 crystallizes in monoclinic C2 / c space group with a = 15.6003 (14), b = Β = 94.320 (2) °, V = 4936.5 (8) ~3, Z = 4, M_r = 1115.67, Dc = 1.496 Mg / m ~ 3, μ = 1.043 mm -1, F (000) = 2272, the final R = 0.0499 and w R = 0.1342 for 2659 observed reflections with I> 2σ (I) and shows a classica l 3D cds topological network with point symbol of {65.8}. Furthermore, thermal stability and luminescent properties of 1 and 2 have also been investigated.