A Cadmium Anionic 1-D Coordination Polymer {[Cd(H 2 O) 6 ][Cd 2 (atr) 2 (μ 2 -btc) 2 (H 2 O) 4 ] 2H 2 O} n within a 3-D Supramolecular Charge-Assisted Hydrogen-Bonded and π-Stacking Network

摘要

The hydrothermal reaction of 4,4′-bis(1,2,4-triazol-4-yl) (btr) and benzene-1,3,5-tricarboxylic acid (H 3 btc) with Cd(OAc) 2 ·2H 2 O at 125 °C in situ forms 4-amino-1,2,4-triazole (atr) from btr, which crystallizes to a mixed-ligand, poly-anionic chain of [Cd 2 (atr) 2 (μ 2 -btc) 2 (H 2 O) 4 ] 2– . Together with a hexaaquacadmium(II) cation and water molecules the anionic coordination-polymeric forms a 3-D supramolecular network of hexaaquacadmium(II)- catena -[bis(4-amino-1,2,4-triazole)tetraaquabis(benzene-1,3,5-tricarboxylato)dicadmate(II)] dihydrate, 1-D-{[Cd(H 2 O) 6 ][Cd 2 (atr) 2 (μ 2 -btc) 2 (H 2 O) 4 ] 2H 2 O} n which is based on hydrogen bonds (in part charge-assisted) and π–π interactions.