A Cadmium Anionic 1-D Coordination Polymer {[Cd(H2O)6][Cd2(atr)2(μ2-btc)2(H2O)4] 2H2O}n within a 3-D Supramolecular Charge-Assisted Hydrogen-Bonded and π-Stacking Network

• Published in: Crystals (Basel) Vol. 6; no. 3; p. 23
• Main Authors: Tahli, Anas, Köc, Ümit, Elshaarawy, Reda, Kautz, Anna, Janiak, Christoph
• Format: Journal Article
• Language: English
• Published: MDPI AG 01-03-2016
• Subjects: anionic coordination polymer; Cadmium; charge-assisted H-bonds; Coordination polymers; crystal engineering; Crystallization; Crystals; Hydrogen bonding; Hydrogen bonds; hydrogen-bonded network; Networks; Three dimensional
• ISSN: 2073-4352; 2073-4352
• DOI: 10.3390/cryst6030023

The hydrothermal reaction of 4,4'-bis(1,2,4-triazol-4-yl) (btr) and benzene-1,3,5-tricarboxylic acid (H3btc) with Cd(OAc)2 times 2H2O at 125 degree C in situ forms 4-amino-1,2,4-triazole (atr) from btr, which crystallizes to a mixed-ligand, poly-anionic chain of [Cd2(atr)2( mu 2-btc)2(H2O)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)tetraaquabi s (benzene-1,3,5-tricarboxylato)dicadmate(II)] dihydrate, 1-D-{[Cd(H2O)6][Cd2(atr)2( mu 2-btc)2(H2O)4] 2H2O}n which is based on hydrogen bonds (in part charge-assisted) and pi - pi interactions.