Ni(II)/Zn(II)-triazolate clusters based MOFs constructed from a V-shaped dicarboxylate ligand: Magnetic properties and phosphate sensing

Two isomorphous metal-organic frameworks (MOFs) {[M 2 ( μ 3 -OH)(trz)(sdba)(H 2 O)]·3H 2 O} ∞ (M = Ni for 1 , Zn for 2 , Htrz = 1,2,4-triazole, H 2 sdba = 4,4′-sulfonyldibenzoate) were obtained under the same reaction condition. Both of complexes present a three dimensional 8- c framework with whc1 topology based on M 4 -( μ 3 -OH) units. Moreover, the magnetic properties of 1 and anion sensing of 2 were investigated. The magnetic study show that the domain antiferromagnetic interactions exist in 1 . However, complex 2 can be considered as a promising chemical sensor for detecting PO 4 3¯ by means of fluorescence enhancement among various anions in aqueous solutions.