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Synthesis and properties of complexes of vanadium(V) oxide trichloride with nitrogen- and oxygen-donor ligands

Synthesis and properties of complexes of vanadium(V) oxide trichloride with nitrogen- and oxygen-donor ligands
Synthesis and properties of complexes of vanadium(V) oxide trichloride with nitrogen- and oxygen-donor ligands
Intensely coloured, extremely moisture sensitive complexes [VOCl3(L)] (L = pyridine, quinoline, Ph3PO, Ph3AsO, pyridine N-oxide), [VOCl3(L)(2)] (L=pyridine, Me3PO, pyridine N-oxide), [VOCl3(L-L)] [L-L = 2,2'-bipyridyl, 1,10-phenanthroline, Ph2P(O)CH2P(O)Ph-2, MeOCH2CH2OMe, 15-crown-5 or Me2NCH2CH2NMe2] and [Cl3OV(mu-L-L)VOCl3] [L-L=18crown-6 or Ph2P(O)CH2P(O)Ph-2] have been prepared from VOCl3 and the appropriate ligands in dichloromethane solution. These constitute the first extended series of complexes of vanadium(V) with neutral donor ligands. They have been fully characterised by analysis, IR, UV/Visible and multinuclear (H-1, P-31, V-51) NMR spectroscopy, and their solution behaviour probed as a function of temperature using 51V NMR spectroscopy. Reducing ligands including phosphanes, arsanes, thio- and selenoethers immediately reduce VOC13 to give V-IV or V-III species. Oxygen atom transfer reactions of some of the complexes with Ph3P, Ph3As, Me2Se and Bu2S, leading to the corresponding ligand oxides are also described.
vanadium, coordination complexes, multinuclear nmr spectroscopy atom transfer-reactions, x-ray structures, crystal-structure, chloride, oxytrichloride, tribromide, spectra, amines
1434-1948
4391-4398
Beard, C.D.
3428eb70-d998-4b45-a31b-f47413269620
Barrie, R.J.
49655820-c1b0-46bc-acda-f189dfc7d880
Evans, J.
05890433-0155-49fe-a65d-38c90ea25c69
Levason, W.
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Reid, G.
37d35b11-40ce-48c5-a68e-f6ce04cd4037
Spicer, M.D.
a7b26195-0b02-43c3-8a9d-591ef54b9170
Beard, C.D.
3428eb70-d998-4b45-a31b-f47413269620
Barrie, R.J.
49655820-c1b0-46bc-acda-f189dfc7d880
Evans, J.
05890433-0155-49fe-a65d-38c90ea25c69
Levason, W.
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Reid, G.
37d35b11-40ce-48c5-a68e-f6ce04cd4037
Spicer, M.D.
a7b26195-0b02-43c3-8a9d-591ef54b9170

Beard, C.D., Barrie, R.J., Evans, J., Levason, W., Reid, G. and Spicer, M.D. (2006) Synthesis and properties of complexes of vanadium(V) oxide trichloride with nitrogen- and oxygen-donor ligands. European Journal of Inorganic Chemistry, (21), 4391-4398. (doi:10.1002/ejic.200600513).

Record type: Article

Abstract

Intensely coloured, extremely moisture sensitive complexes [VOCl3(L)] (L = pyridine, quinoline, Ph3PO, Ph3AsO, pyridine N-oxide), [VOCl3(L)(2)] (L=pyridine, Me3PO, pyridine N-oxide), [VOCl3(L-L)] [L-L = 2,2'-bipyridyl, 1,10-phenanthroline, Ph2P(O)CH2P(O)Ph-2, MeOCH2CH2OMe, 15-crown-5 or Me2NCH2CH2NMe2] and [Cl3OV(mu-L-L)VOCl3] [L-L=18crown-6 or Ph2P(O)CH2P(O)Ph-2] have been prepared from VOCl3 and the appropriate ligands in dichloromethane solution. These constitute the first extended series of complexes of vanadium(V) with neutral donor ligands. They have been fully characterised by analysis, IR, UV/Visible and multinuclear (H-1, P-31, V-51) NMR spectroscopy, and their solution behaviour probed as a function of temperature using 51V NMR spectroscopy. Reducing ligands including phosphanes, arsanes, thio- and selenoethers immediately reduce VOC13 to give V-IV or V-III species. Oxygen atom transfer reactions of some of the complexes with Ph3P, Ph3As, Me2Se and Bu2S, leading to the corresponding ligand oxides are also described.

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Published date: 2006
Keywords: vanadium, coordination complexes, multinuclear nmr spectroscopy atom transfer-reactions, x-ray structures, crystal-structure, chloride, oxytrichloride, tribromide, spectra, amines

Identifiers

Local EPrints ID: 44376
URI: http://eprints.soton.ac.uk/id/eprint/44376
ISSN: 1434-1948
PURE UUID: b4cd7931-0aa7-4c9d-8ab4-5c78732dc85c
ORCID for J. Evans: ORCID iD orcid.org/0000-0003-3290-7785
ORCID for W. Levason: ORCID iD orcid.org/0000-0003-3540-0971
ORCID for G. Reid: ORCID iD orcid.org/0000-0001-5349-3468

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Date deposited: 02 Mar 2007
Last modified: 29 Oct 2024 02:32

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Contributors

Author: C.D. Beard
Author: R.J. Barrie
Author: J. Evans ORCID iD
Author: W. Levason ORCID iD
Author: G. Reid ORCID iD
Author: M.D. Spicer

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