A New 3-Fold Interpenetrating 3D Zn(Ⅱ) Metal-organic Framework: Synthesis,Structure and Luminescent Property

A new Zn(Ⅱ) coordination polymer,namely {[Zn_(1.5)(1,3,5-btc~(3-))(dtb)(H_2O)](H_2O)_2}_n(1)(1,3,5-H_3btc = 1,3,5-benzenetricarboxylic acid,dtb = 1,3-di-(1,2,4-triazole-4-yl)benzene),has been hydrothermally synthesized and structurally characterized. X-ray single-crystal diffraction determination reveals that 1 crystallizes in the monoclinic C2/c space group with a = 33.811(12),b = 8.406(2),c = 17.296(4) ?,β = 120.593(2)°,V = 4232(2) ?~3,Z = 4,Mr = 1142.88,Dc = 1.794 Mg/m~3,μ = 1.783 mm~(-1),F(000) = 2320,the final R = 0.0338 and wR = 0.0827 for 3043 observed reflections with I 2σ(I). Compound 1 exhibits 1D Zn(Ⅱ)-carboxylate chains,which are connected into a 3D porous framework with large channels by dtb,and then three identical 3D networks are interpenetrated with each other. In addition,the luminescence property of the complex has also been investigated.