Research paperUnusual self-penetrating and polycatenated coordination polymers based on the semi-rigid V-shaped ligand 4-(1-(4-(2H-tetrazol-5-yl)benzyl)-1H-pyrazol-3-yl)pyridine

Add time:08/16/2019    Source:sciencedirect.com

Self-assembly of d10 metal salts with a semi-rigid V-shaped N-containing ligand affords two entangled coordination frameworks, namely [Zn2(bdc)1.5(tbpp)] (1) and [Cd(tbpp)2(H2O)]·H2O (2) (Htbpp = 4-(1-(4-(2H-tetrazol-5-yl)benzyl)-1H-pyrazol-3-yl)pyridine, H2bdc = 1,4-benzenedicarboxylate acid). Their structures were determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra, X-ray powder diffraction and TG analyses. Compound 1 is a (3,6)-connected 3D self-penetrating network with an unprecedented (4.62)(43.67.74.8) topology. Compound 2 is the first example of (2D → 3D) parallel polycatenation of 44-sql net with double edges. Additionally, the photoluminescence properties of compounds 1 and 2 were studied.

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