Hydrogen Bond Networks of Three Cobalt Coordination Polymers Based on Bis(triazole) and Benzenebiscarboxylate Isomers

Abstract

AbstractThree hydrogen bond networks of cobalt(II) coordination polymers {[Co(btp)2(H2O)2]·2(1,2‐Hbdc)·2H2O}n (1), {[Co(btp)(1,3‐bdc)(H2O)]·1.5H2O}n (2) and {[Co(btp)2(H2O)2]·(1,4‐bdc)}n (3) were synthesized by 1,3‐bis(1,2,4‐triazol‐1‐yl)propane (btp) and benzenedicarboxylate position isomers. Complex 1 is comprised of [Co(btp)2(H2O)]n2n+ 1D cation chains, 1,2‐Hbdc− anions and lattice water molecules. The structure of 2 is an undulated 2D (4,4) network. Two adjacent networks interpenetrate each other to form a new 2D double‐layers network which is sustained by the hydrogen bond interactions in 2. Complex 3 is comprised of [Co(btp)2(H2O)]n2n+ 1D cation chains and 1,4‐bdc2− anions. These [Co(btp)2(H2O)]n2n+ 1D cations and 1,2‐Hbdc−/1,4‐bdc2− anions form 2D hydrogen bond networks in 1 and 3. The thermal stabilities of 1, 2 and 3 were investigated.