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

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.