A metal–organic framework made of an asymmetric 1,2,4-triazole and tetrazole ligand

Abstract

Reaction of the asymmetric ligand, 1-[3′-(1,2,4-triazol-4-yl)propyl]tetrazole (L) with Cu(BF₄)₂ in water leads to the Cu^II metal–organic framework [CuL(OH)]BF₄ (I). According to X-ray analysis, L connects four Cu^II ions, where the 1,2,4-triazole and tetrazole units exhibit a bridging bis-monodentate μ₂-N1,N2 and a unique μ₂-N2,N3 coordination modes, respectively.