In situ construction of four copper(I) cyanide coordination polymers: crystal structures, fluorescence and catalytic properties

Abstract

Four Cu(I) cyanide coordination polymers, namely [Cu(L1)(CN)] n (1), [Cu 2 (L2)(CN) 2 ] n (2), [Cu 2 (L3)-(CN) 2 ] n (3) and [Cu 2 (L4)(CN) 2 ] n (4) (L1 = 4,4 0 -bis(1,2,4-triazolyl-1-yl)-biphenyl, L2 = 1,4-bis(5,6-dimethylbenzimidazole)butane, L3 = 1,3-bis(2-methylbenzimidazole)propane, L4 = 1,5-bis(5,6-dimethylbenzimidazole)pentane), were synthesized and structurally characterized by X-ray singlecrystal diffraction. The cyanide anions in these complexes were generated in situ by cleavage of the C-C bond of acetonitrile under hydrothermal conditions. Complex 1 possesses a 1D infinite ladder-like chain structure, while complexes 2, 3 and 4 exhibit similar 2D (6,3) networks. Both 3 and 4 are further extended into 3D supramolecular frameworks by C-HÁÁÁp stacking interactions. The fluorescence properties of the complexes and their catalytic activities for the degradation of Congo red azo dye in a Fentonlike process were investigated.

Crystal structure of poly[bis(μ-2-bromopyrazine)tetra-μ2-cyanido-dicopper(I)iron(II)]: a bimetallic metal-organic framework

“…The rational design and synthesis of cyanide-based coordination materials is of key interest today. By using different approaches for their design and tunable structures, composition and porosity, various exciting properties of these compounds, such as catalytic, photoluminescent, magnetic, electrical and other can be achieved (Zhang et al, 2015;Catala & Mallah, 2017). The cyanide anion is an important ligand in coordination chemistry as it can be used for stabilization of coordination materials formed by diverse transition metals.…”

Coordination Polymers Based on Highly Emissive Ligands: Synthesis and Functional Properties

“…In the presence of Cu-CP and Ag-CP after 150 min MO decomposed by 68.9% and 96.6%, respectively. -yl)pentane) were prepared by Zhang[139]. The photophysical characteristics are given in Table3.…”