Effect of functionlization of <i>N</i>,<i>N</i>-dibenzyldithiocarbamate: synthesis, spectral and structural studies on bis(<i>N</i>-benzyl-<i>N</i>-(4-methoxybenzyl)dithiocarbamato-S,S′)zinc(II) and bis(<i>N</i>-benzyl-<i>N</i>-(4-cholrobenzyl)dithiocarbamato-S,S′)cadmium(II) and their use for the preparation of MS (M = Zn, Cd)

<div><p>ABSTRACT</p><p>Bis(<i>N</i>-benzyl-<i>N</i>-(4-methoxybenzyl)dithiocarbamato-S,S′)zinc(II) (<b>1</b>) and bis(<i>N</i>-benzyl-<i>N</i>-(4-chlorobenzyl)dithiocarbamato-S,S′)cadmium(II) (<b>2</b>) have been prepared and characterized by elemental analysis, IR and NMR (<sup>1</sup>H and <sup>13</sup>C) spectroscopy and single-crystal X-ray analysis. Complexes <b>1</b> and <b>2</b> exist as monomer and dimer, respectively. Crystal structures of <b>1</b> and <b>2</b> confirm the presence of four coordinated zinc in a distorted tetrahedral arrangement and five coordinated cadmium in a distorted square pyramid arrangement, respectively. Both the complexes are further stabilized by various interactions such as C–H···S, C–H···N, C–H···O and C–H···π (chelate). C–H···O interaction leads to the formation of dimer in complex <b>1</b>. In complex <b>2</b>, C–H···π (chelate) interaction runs in opposite directions which results in the polymeric chain. ZnS and CdS have been prepared from <b>1</b> and <b>2</b>, respectively, and characterized by powder X-ray diffraction, SEM, UV–Vis and fluorescence spectroscopy. The X-ray diffraction pattern confirms the wurtzite phase of as-prepared ZnS and CdS.</p></div>