Acta Crystallographica Section C

Crystal Structure Communications

Volume 68, Part 9 (September 2012)

metal-organic compounds

fa3283 scheme

Acta Cryst. (2012). C68, m238-m241    [ doi:10.1107/S0108270112032192 ]

rac-1-[(2-Meth­oxy­eth­yl)sulfan­yl]-2-[(2-meth­oxy­eth­yl)sulfin­yl]benzene and its PdCl2 complex

J. Traeger, A. Kelling, U. Schilde and H.-J. Holdt

Abstract: As an extension of recent findings on the recovery of palla­dium with dithio­ether extracta­nts, single crystals of the chelating vicinal thio­ether sulfoxide ligand rac-1-[(2-meth­oxy­eth­yl)sulfan­yl]-2-[(2-meth­oxy­eth­yl)sulfin­yl]benzene, C12H18O3S2, (I), and its square-planar dichloridopalladium complex, rac-dichlorido{1-[(2-meth­oxy­eth­yl)sulfan­yl]-2-[(2-meth­oxy­eth­yl)sulfin­yl]benzene-[kappa]2S,S'}palladium(II), [PdCl2(C12H18O3S2)], (II), have been synthesized and their structures analysed. The mol­ecular structure of (II) is the first ever characterized involving a dihalogenide-PdII complex in which the palladium is bonded to both a thio­ether and a sulfoxide functional group. The structural and stereochemical characteristics of the ligand are compared with those of the analogous dithio­ether compound [Traeger et al. (2012). Eur. J. Inorg. Chem. pp. 2341-2352]. The sulfinyl O atom sup­presses the electron-pushing and mesomeric effect of the S-C[pdbond]C-S unit in ligand (I), resulting in bond lengths significantly different than in the dithio­ether reference compound. In contrast, in complex (II), those bond lengths are nearly the same as in the analogous dithio­ether complex. As observed previously, there is an inter­action between the central PdII atom and the O atom that is situated above the plane.

Formula: C12H18O3S2 and [PdCl2(C12H18O3S2)]

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