Long Chain Aliphatic Diamine as Template for the Construction of Host–Guest Copper–Cyanide 3D-Network

Abstract

1,6-Diaminohexane (DAHX) was used as template for construction of new host–guest coordination network; ∞ 3[(Cu3(CN)3)2·(DAHX)], 1. This supramolecular coordination polymer (SCP) consists of 3D-(Cu3(CN)3)2 network based on distorted tetrahedral copper(I) atoms. The extended structure of SCP 1 contains a new two-fold Cu3(µ3-CN)4 units which are assembled in unique way to adopt wide voids capable to accommodate the long chain diamine molecules. The structure of 1 was investigated by elemental analysis, IR and 1H-NMR spectroscopy, thermogravimetric analyses and X-ray single crystal diffraction. The SCP 1 acts as effective catalyst for degradation of methylene blue (MB) dye using H2O2 as oxidant. Photoluminescence probing technology was used as a sensitive probe for detecting ·OH radicals and a reaction mechanism has been suggested utilizing the redox properties of H2O2.