Homoleptic octahedral hexakis(trimethylphosphine oxide)lanthanide hexafluorophosphates, Ln(Me3PO)(6) PF6 (3): synthesis, structures and properties


Hill, N. J., Leung, L. S., Levason, W. and Webster, M. (2003) Homoleptic octahedral hexakis(trimethylphosphine oxide)lanthanide hexafluorophosphates, Ln(Me3PO)(6) PF6 (3): synthesis, structures and properties. Inorganica Chimica Acta, 343, 169-174. (doi:10.1016/S0020-1693(02)01209-4).

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Description/Abstract

The [Ln(Me3PO)(6)][PF6](3) (Ln = lanthanide except Pm) were prepared by reaction of LnCl(3) (.) nH(2)O with Me3PO and NH4PF6 in a 1:8:3 molar ratio in methanol. The complexes have been characterised by analysis, IR, H-1 and P-31 NMR spectroscopy and conductance measurements. The crystal structure of the complexes [Ln(Me3PO)(6)](PF6)(3) (Ln = Pr, Gd or Dy) have been determined and all contain the six-coordinate lanthanide cation in a close to octahedral geometry. Similar cations have been structurally characterised for Y (ICJ. Hill et al. Polyhedron 21 (2002) 445) and for the much smaller Sc.

Item Type: Article
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Keywords: lanthanides, phosphine oxide, crystal structures crystal-structures, nitrate complexes, scandium, yttrium, oxides, la
Subjects: Q Science > QD Chemistry
Divisions: University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 19982
Date Deposited: 23 Feb 2006
Last Modified: 27 Mar 2014 18:09
URI: http://eprints.soton.ac.uk/id/eprint/19982

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