Unusual potassium coordination in the 18-crown-6 tetraphenyldiselenoimidodiphosphinate complex and its sulfur analogue

K H Ebert, R CeaOlivares, V GarciaMontalvo, G EspinosaPerez, M R Estrada, J Novosad, J D Woollins

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11 Citations (Scopus)

Abstract

A [K(18-crown-6)] salt of the (Ph(2)PSe)(2)NH ligand was obtained by reaction of [K(Ph(2)PSe)(2)N] with 18-crown-6 [monoclinic space group C2/c with the cell parameters a = 20.310(2), b = 8.894(2), c = 22.978(3) Angstrom, beta = 114.66(2)degrees, and Z = 4]. The potassium ion has the rare coordination number 10, It is coordinated to the six oxygen atoms of the crown ether and to four carbon atoms, two from each of the two anionic Ligands neighboring the cationic moiety.

Original languageEnglish
Pages (from-to)1145-1149
Number of pages5
JournalZeitschrift für Naturforschung B - A Journal of Chemical Sciences
Volume51
Issue number8
Publication statusPublished - Aug 1996

Keywords

  • potassium(18-crown-6) complex
  • tetraphenyldiselenoimidodiphosphinate
  • tetraphenyldithioimidophosphinate
  • phosphazene
  • ALKALINE-EARTH CATIONS
  • FREE CHELATE RINGS
  • X-RAY STRUCTURE
  • MOLECULAR-STRUCTURES
  • CRYSTAL-STRUCTURES
  • DERIVATIVES
  • CHEMISTRY
  • ARYL

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