The University of Southampton
University of Southampton Institutional Repository

Yttrium halide complexes of phosphine- and arsine oxides: synthesis, multinuclear NMR and structural studies

Yttrium halide complexes of phosphine- and arsine oxides: synthesis, multinuclear NMR and structural studies
Yttrium halide complexes of phosphine- and arsine oxides: synthesis, multinuclear NMR and structural studies
The reactions of YCl3.6H(2)O, YBr3.6H(2)O and YI3.8H(2)O with Ph3PO, Ph3AsO, Ph2MePO, Me3PO, Me3AsO, o-C6H4{P(O)Ph-2}(2), (ppO(2)) and Ph2P(O)CH2P(O)Ph-2 (dppmO(2)) have been examined in EtOH or Me2CO solution. Complexes isolated in the solid state include [YX2(Ph3PO)(4)]Z (X = Cl, Br or I; Z = X or PF6), [YX3(Ph2MePO)(3)], [YCl2(Ph2MePO)(4)]PF6, [YCl(Ph3PO)(5)][SbCl6](2), [Y(Me3PO)(6)]X-3, [YX2(Ph3AsO)(4)]X, [Y(Me3AsO)(6)]Cl-3 and [YCl2(L-L)(2)]Cl (L-L = ppO(2) or dppmO(2)) which were characterised by analysis, IR and multinuclear (H-1, P-31{H-1} and Y-89) NMR spectroscopy and conductance measurements. The X-ray crystal structures of [YCl2(Ph3PO)(4)]Cl.2.5EtOH.H2O, [YBr2(Ph3PO)(4)]PF6.Et2O and [Y(Me3PO)(6)]Br-3 are reported and discussed. The solution speciation (in CH2Cl2) in the various systems was examined by variable temperature multinuclear NMR spectroscopy. The Y-89 NMR chemical shifts show systematic trends with donor set which are described. No reaction between these ligands and YF3.1/2H(2)O was observed.
yttrium, phosphine oxide, arsine oxide, x-ray structures crystal-structure
0277-5387
445-455
Hill, N. J.
9aa23b1b-287e-4c75-8d49-a7f313dcd00b
Levason, W.
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Popham, M. C.
02a55e82-8c1d-4256-ac28-955979aaf0f1
Reid, G.
37d35b11-40ce-48c5-a68e-f6ce04cd4037
Webster, M.
f26c6e36-cb2e-486e-b2ed-b0d25a3a71f7
Hill, N. J.
9aa23b1b-287e-4c75-8d49-a7f313dcd00b
Levason, W.
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Popham, M. C.
02a55e82-8c1d-4256-ac28-955979aaf0f1
Reid, G.
37d35b11-40ce-48c5-a68e-f6ce04cd4037
Webster, M.
f26c6e36-cb2e-486e-b2ed-b0d25a3a71f7

Hill, N. J., Levason, W., Popham, M. C., Reid, G. and Webster, M. (2002) Yttrium halide complexes of phosphine- and arsine oxides: synthesis, multinuclear NMR and structural studies. Polyhedron, 21 (4), 445-455. (doi:10.1016/S0277-5387(01)01011-7).

Record type: Article

Abstract

The reactions of YCl3.6H(2)O, YBr3.6H(2)O and YI3.8H(2)O with Ph3PO, Ph3AsO, Ph2MePO, Me3PO, Me3AsO, o-C6H4{P(O)Ph-2}(2), (ppO(2)) and Ph2P(O)CH2P(O)Ph-2 (dppmO(2)) have been examined in EtOH or Me2CO solution. Complexes isolated in the solid state include [YX2(Ph3PO)(4)]Z (X = Cl, Br or I; Z = X or PF6), [YX3(Ph2MePO)(3)], [YCl2(Ph2MePO)(4)]PF6, [YCl(Ph3PO)(5)][SbCl6](2), [Y(Me3PO)(6)]X-3, [YX2(Ph3AsO)(4)]X, [Y(Me3AsO)(6)]Cl-3 and [YCl2(L-L)(2)]Cl (L-L = ppO(2) or dppmO(2)) which were characterised by analysis, IR and multinuclear (H-1, P-31{H-1} and Y-89) NMR spectroscopy and conductance measurements. The X-ray crystal structures of [YCl2(Ph3PO)(4)]Cl.2.5EtOH.H2O, [YBr2(Ph3PO)(4)]PF6.Et2O and [Y(Me3PO)(6)]Br-3 are reported and discussed. The solution speciation (in CH2Cl2) in the various systems was examined by variable temperature multinuclear NMR spectroscopy. The Y-89 NMR chemical shifts show systematic trends with donor set which are described. No reaction between these ligands and YF3.1/2H(2)O was observed.

This record has no associated files available for download.

More information

Published date: 1 March 2002
Keywords: yttrium, phosphine oxide, arsine oxide, x-ray structures crystal-structure

Identifiers

Local EPrints ID: 19775
URI: http://eprints.soton.ac.uk/id/eprint/19775
ISSN: 0277-5387
PURE UUID: 0ae04e3f-57e1-4241-b5cc-f84a4f40bbc1
ORCID for W. Levason: ORCID iD orcid.org/0000-0003-3540-0971
ORCID for G. Reid: ORCID iD orcid.org/0000-0001-5349-3468

Catalogue record

Date deposited: 16 Feb 2006
Last modified: 09 Jan 2022 02:43

Export record

Altmetrics

Contributors

Author: N. J. Hill
Author: W. Levason ORCID iD
Author: M. C. Popham
Author: G. Reid ORCID iD
Author: M. Webster

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×