Abstract
Two new (NS)2 Schiff bases, (4-NO2Ph)2dapte (N,N′-di-(4-nitrobenzaldimine)-1,2-di(o-aminophenylthio)ethane) (1) and (thio)2daptx (N,N′-di-(thiophenedimine)-1,4-di(o-aminophenylthio)xylene) (2), and their 1-D copper(I) coordination polymers [Cu2(μ-Br)2(μ-(4-NO2Ph)2dapte)] n (3), [Cu2(μ-I)2(μ-(4-NO2Ph)2dapte)] n (4), and [Cu2(μ-I)2(μ-(thio)2daptx)] n (5) have been synthesized and characterized by elemental analyses and IR, UV-Vis, and 1H NMR spectroscopy. The structures of 4 and 5 have been determined by X-ray crystallography and were shown to consist of Cu2(μ-I)2 secondary building units (SBUs) bridged by (4-NO2Ph)2dapte or (thio)2daptx ligands. The CuNSI2 coordination sphere is a distorted tetrahedral in both cases. Both (4-NO2Ph)2dapte and (thio)2daptx are N2S2-bis-bidentate chelating ligands with the two imine nitrogens and two thioether sulfurs in a trans configuration generating dinuclear [Cu2(μ-(4-NO2Ph)2dapte)] and [Cu2(μ-(thio)2daptx)]. These units are connected by two bridging iodides to form 1-D copper(I) coordination polymers. The electrochemical properties of 3–5 are also reported and discussed.
Acknowledgment
Partial support of this work by the Isfahan University of Technology Research Council is gratefully acknowledged.