The coordination chemistry of copper(I) in liquid ammonia, trialkyl and triphenyl phosphite, and tri-n-butylphosphine solution

Dalton Transactions : an International Journal of Inorganic Chemistry
Kersti B Nilsson, Ingmar Persson

Abstract

The coordination chemistry of the solvate complexes of the relatively soft electron-pair acceptor copper(I) has been studied in solution and solid state in seven solvents with strong electron-pair donor properties, liquid ammonia, trimethyl, triethyl, triisopropyl, tri-n-butyl and triphenyl phosphite, and tri-n-butylphosphine. The solvate complexes have been characterised by means of EXAFS and 63Cu NMR spectroscopy, and in some cases also by 65Cu NMR spectroscopy. The copper(I) ion is three-coordinated, most probably in a coplanar trigonal fashion, in liquid ammonia with a mean Cu-N bond distance of 2.00(1) Angstroms. No 63Cu NMR signal has been detected from the ammonia solvated copper(I) ion in liquid ammonia, which supports a three-coordination. The phosphite and phosphine solvated copper(I) ions are tetrahedral with Cu-P bond distances in the range 2.24-2.28 Angstrom in both solution and solid state as determined by EXAFS spectroscopy. The tetrahedral configuration of these complexes has been confirmed by 63Cu and 65Cu NMR spectroscopy through the J(63Cu-31P) and J(65Cu-31P) couplings. The fact that two of the investigated complexes, [Cu(P(OC6H5)3)4]+ and [Cu(P(C4H9)3)4]+, are 63Cu and 65Cu NMR silent is probably caused by ...Continue Reading

Citations

Feb 6, 2013·Inorganic Chemistry·Lavinia M ScherfHubert Schmidbaur
Aug 23, 2007·Physical Chemistry Chemical Physics : PCCP·Kazuya InoueHiroshi Sekiya
Apr 17, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Kersti B NilssonMagnus Sandström
Jul 19, 2005·Magnetic Resonance in Chemistry : MRC·Mikhail Maliarik, Ingmar Persson
Jan 9, 2020·Physical Chemistry Chemical Physics : PCCP·Clémence QueffélecBernard Humbert
Aug 30, 2012·Organic & Biomolecular Chemistry·Pengju JiMichael I Page
Jun 5, 2008·The Journal of Organic Chemistry·Stephen RiethJovica D Badjić
Aug 2, 2012·The Journal of Organic Chemistry·Pengju JiMichael I Page
Jul 21, 2006·The Journal of Physical Chemistry. B·Yujun SongChalla S S R Kumar

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