Synthesis and structural characterization of silver(I) and gold(I) complexes of N,N′-diisobutyloxycarbonyl-N,N′′′-(1,3-propylene)-bisthiourea

N,N'-diisobutyloxycarbonyl-N '',N'-(1,3-propylene)-bisthiourea (L) and its silver(I) and gold(I) complexes were designed and synthesized. Treatment of 1,3-propanediamine with the isothiocyanate (PrCH2OC)-Pr-i(O) NCS yielded bisthiourea L with over 90% yield. Treatment of L with AgNO3 in CH3CN afforded coordination polymer {[Ag(L)(NO3)center dot CH3CN]}(n) (1) with layer structure, while with HAuCl4 in CH3CN resulted in reduction of Au3+ to Au+ to yield molecular [Au(L)Cl] (2). Ligand Land complexes 1 and 2 were fully characterized by IR, H-1 NMR, UV-Vis, cyclic voltammetry and element analysis. The X-ray diffraction analysis displays that the bisthiourea L behaves as sulfur donor to coordinate to Ag and Au atom with mu(3)-(S, mu(2)-S' S') and mu(2)-S, S' coordination mode in 1 and 2, respectively. (C) 2017 Elsevier Ltd. All rights reserved.