Synthesis, structure and fluorescence of two novel manganese(II) and zinc(II)-1,3,5-benzene tricarboxylate coordination polymers: Extended 3D supramolecular architectures stabilised by hydrogen bonding

Arpi Majumder (1) , Shyamapada Shit (1) , Chirantan Roy Choudhury (1) , Stuart R. Batten (2) , Guillaume Pilet (3) , Dominique Luneau (3) , Nathalie Daro (4) , Jean-Pascal Sutter (5) , Nitin Chattopadhyay (1) , Samiran Mitra (1)

1 Department of Chemistry
2 School of Chemistry
3 LMI - Laboratoire des Multimatériaux et Interfaces
4 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
5 LCC - Laboratoire de chimie de coordination

Two new coordination polymers [Mn(H2btc)(phen)(H2O)2]H2btc · H2O n (1) [H3btc = 1,3,5-benzene tricarboxylic acid, phen = phenanthroline] and [Zn3(btc)2(H2O)8](H2O)4 n (2) have been synthesised and structurally characterised. Both the complexes crystallise as 1D chain, which further propagates through ligand-based hydrogen bonding interactions into a 3D supramolecular architecture. Supramolecular framework of 1 is constructed by [Mn(H2btc)(phen)(H2O)2]+ as well as the constituent materials–uncoordinated H2btc− and water molecules. Complex 2 exists as a corrugated chain with both the bridging and terminal Zn2+ ions and each zinc centre is coordinated to four water molecules. Both 1 and 2 are stacked by mutual π-stacking of the ligands and exhibit strong fluorescence emission band at 414 and 400 nm, respectively.

Mots clés: Coordination polymers with Mn(II) and Zn(II); Supramolecular frameworks; Crystal structures; Fluorescence

Domaines: Matériaux

Arpi Majumder, Shyamapada Shit, Chirantan Roy Choudhury, Stuart R. Batten, Guillaume Pilet, et al.. Synthesis, structure and fluorescence of two novel manganese(II) and zinc(II)-1,3,5-benzene tricarboxylate coordination polymers: Extended 3D supramolecular architectures stabilised by hydrogen bonding. Inorganica Chimica Acta, 2005, 358 (13), pp.3855-3864. ⟨10.1016/j.ica.2005.07.002⟩. ⟨hal-00097506⟩