Bulletin of the Korean Chemical Society

  • 제13권2호
  • /
  • Pages.135-139
  • /
  • 1992
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Oxidative Addition Reaction of Mono(aryl)cyanoplatinum(Ⅱ) Complex with Two Amino Ligands with the Dihalogens

  • Ko Jaejung (Department of Chemical Education, Korea National University of Education) ;
  • Kim Moonsik (Department of Chemical Education, Korea National University of Education) ;
  • Kim Seho (Department of Chemical Education, Korea National University of Education) ;
  • Shin Yookil (Department of Chemical Education, Korea National University of Education)
  • 발행 : 1992.04.20
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초록

The mono(aryl)cyanoplatinum(II) complex $[Pt(CN)(C_6H_3{CH_2NMe_2}_2-26)]$, reacts with the dihalogens to yield the mono(aryl)cyanoplatinum complexes $[PtX_2(CN)(C_6H_3{CH_2NMe_2}_2-26)]$, (X = Cl, Br, I). The structural configuration of the two halogen atoms for a square planar platinum complex was studied by 1H-NMR spectroscopy and led to a mixture of trans and cis orientation. The trans orientation was found to be more stable in energy (1.33 kcal/mol) than the cis orientation by means of Extended H ckel calculations. On the base of a combination of the analysis of $^1H-NMR$, $^{13}C-NMR spectra and computational calculations it is assumed that the intermediate consists of an initial attack in the linear transition state, leading to the $S_{N}2$ type mechanism.

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