Luminescence and magnetic properties of three metal–organic frameworks based on the 5-(1H-tetrazol-5-yl)isophthalic acid ligand?

CrystEngComm Pub Date: 2013-06-19 DOI: 10.1039/C3CE40869H

Abstract

Three new metal–organic frameworks based on 5-(1H-tetrazol-5-yl)isophthalic acid complexes {[Cd4(TZI)2(OH)2(H2O)4](H2O)6}n (1), {[Zn2(TZI)(OH)(H2O)2](H2O)}n (2) and {[Co8(TZI)3(OH)5((N3)2(H2O)8](H2O)8}n (3) have been synthesized in situ by hydrothermal reactions of the 5-cyano-1,3-benzenedicarboxylic acid ligand with cadmium, zinc and cobalt metallic(II) salts in the presence of sodium azide in water. Compounds 1 and 2 display intense photoluminescence properties in the solid state at room temperature, while 3 exhibits an antiferromagnetic interaction between cobalt(II) ions with a J value of ?3.8 cm?1. The in situ hydrothermal syntheses reveal new possibilities for the formation of new MOFs to construct new materials with fascinating structures and potential applications.

Graphical abstract: Luminescence and magnetic properties of three metal–organic frameworks based on the 5-(1H-tetrazol-5-yl)isophthalic acid ligand
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