Abstract
The reaction of K-3[Cu(CN)(4)] and 1,4-diaminobutane (DAB) or 1,5-diaminopentane (DAP) in the presence of Me3SnCl affords two monometallic host-guest Cu(I) cyanide polymers: {[H(2)DAB][Cu-4(CN)(6)]center dot 2H(2)O}, 1, and{[H(2)DAP][H3O][Cu-4(CN)(7)]center dot 2H(2)O}, 2, with exclusion of Me3Sn+ cation. The products were characterized by physicochemical and spectroscopic methods. The structure of 1 consists of two-dimensional hexagonal sheets of (CuCN) (n) which stack along the b-axis creating honeycomb-shaped channels capable of encapsulating the protonated DAB and water molecules. The structure of 2 consists of a three-dimensional network of [Cu-4(CN)(7)] with large cavities that include H(2)DAP and water molecules. The rhombic minicycle [Cu-2(mu-CN)(2)] fragments represent the basic building blocks of the network structure of 2. The structures of these compounds are stabilized by hydrogen bonding. The SCP 1 and SCP 2 exhibit good catalytic and photocatalytic activities for the degradation of methylene blue (MB) in the presence of H2O2. The efficiency of recycled SCP 1 and SCP 2 and the mechanism of degradation of MB dye were also investigated.