New Organotin/CuCN/Quinazoline 3D-Supramolecular Coordination Polymers Having Catalytic and Luminescence Activities

Abstract

The new bimetallic supramolecular coordination polymers (SCP); 3 ∞[Cu(CN)2·Me3Sn·qaz], 1 and 3 ∞[Cu2(CN)4·(Ph3Sn)2·qaz], 2 (qaz = quinazoline), are prepared in water/acetonitrile solvent at room temperature. The structure of 1 consists of the anionic Cu(CN)2 building blocks connected by the Me3Sn cations to form zigzag chains which are bridged by qaz creating 2D-sheets. The interwoven infinite sheets are arranged in parallel A···A···A fashion developing 3D-network structure via H-bonds, π–π stacking, and Cu–C contacts. The network structure of 2 exhibits two different copper sites forming two Cu(CN)2 building blocks which are connected by the Ph3Sn groups constructing elongated corrugated chains. The qaz ligand connects these chains forming 3D-network structure containing the rhombic [Cu2(μ3-CN)2] motif. 1 and 2 are luminescent materials which can be used in applications as molecular sensing systems. Also, the catalytic activity of 1 and 2 was investigated towards the degradation of Metanil Yellow (MY) dye by dilute solution of hydrogen peroxide as oxidant.