Synthesis of New Pd<sup>II</sup> Complexes Containing a Thioether-Pyrazole Hemilabile Ligand - Structural Analysis by <sup>1</sup>H, <sup>13</sup>C NMR Spectroscopy and Crystal Structure of [PdCl(bdtp)]BF<inf>4</inf> [bdtp = 1,5-Bis(3,5-dimethyl-1-pyrazolyl)-3-thiapentane]

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Abstract

Treatment of the ligand 1,5-bis(3,5-dimethyl-1-pyrazolyl)-3-thiapentane (bdtp) with [PdCl2(CH3CN)2] led to a [PdCl 2(bdtp)] complex. Subsequent treatment of this complex with AgBF 4 gave [PdCl(bdtp)](BF4). These PdII complexes were characterised by elemental analysis, conductivity measurements, IR spectroscopy, and 1H and 13C NMR spectroscopy. Complex [PdCl2(bdtp)] was again obtained when the complex [PdCl(bdtp)](BF4) was heated under reflux in a solution of NEt 4Cl in CH2Cl2/MeOH (1:1). Ligand bdtp in complexes 1 and 2 exhibited a hemilabile character. The X-ray structure of the complex [PdCl(bdtp)](BF4) was determined. The metal atom is tricoordinated by the two azine nitrogen atoms and one thioether sulfur atom of the thioether-pyrazole ligand, its coordination (distorted square planar) being completed with one chloride ion. © Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
Original languageEnglish
Pages (from-to)3952-3957
JournalEuropean Journal of Inorganic Chemistry
Issue number21
DOIs
Publication statusPublished - 7 Nov 2003

Keywords

  • Hemilabile ligands
  • N,S ligands
  • Palladium

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