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Articles

A Pb2+-based coordination polymer with 5-(1H-tetrazol-5-yl)isophthalic acid ligand: structure and photoluminescence

, , , , , & show all
Pages 2573-2579 | Received 22 Jan 2016, Accepted 26 May 2016, Published online: 28 Jul 2016
 

Abstract

A coordination polymer, [Pb2(OH)(tzia)]·2H2O (1), has been prepared by solvothermal reaction of 5-(1H-tetrazol-5-yl)isophthalic acid (H3tzia) and Pb(NO3)2. The polymer 1 is based on an unprecedented centrosymmetric tetranuclear [Pb4(OH)2(COO)4(ttaz)2] cluster linked by a multidentate tzia ligand, affording a 2-D 3,6-connected kgd layer. The adjacent layers are further jointed by Pb⋯O interactions to form a 3-D supramolecular framework with a rare (3,8)-connected tfz-d; UO3 topology. Photoluminescent properties of H3tzia, 1, and 1-desolvated have been further investigated, and it was interesting to find that 1-desolvated due to the removal of lattice water molecules reveals stronger photoluminescence than 1.

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