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Effect of fluorine and trifluoromethyl substitution on the donor properties and stereodynamical behaviour of triarylphosphines

Effect of fluorine and trifluoromethyl substitution on the donor properties and stereodynamical behaviour of triarylphosphines
Effect of fluorine and trifluoromethyl substitution on the donor properties and stereodynamical behaviour of triarylphosphines
A series of 2-, 3- or 4-trifluoromethyl substituted triarylphosphines and their oxide, chalcogenide and Fe(CO)(4) derivatives have been prepared and characterised spectroscopically and crystallographically. Electronic effects of CF3 substitution are cumulative and felt equally in the 2, 3 or 4 position. Substitution in the 2 position substantially hinders the complexing ability for steric reasons. Correlated P-C rotation in the 2-substituted derivatives has been analysed by variable temperature NMR and molecular mechanics calculations.
x-ray crystal, nuclear-magnetic-resonance, p-se bond, molecular-structures, spectroscopic characterization, homogeneous catalysis, correlated rotation, complexes, phosphine, selenide
3015-3028
Howell, J.A.S.
8d2961a7-06de-4cc9-a79a-e081dce914b4
Fey, N.
e85f0d6f-9873-48ef-85cf-b343dc52b329
Lovatt, J.D.
dfbe888c-9dd1-48a7-b87b-88dae0e05100
Yates, P.C.
2bc528ac-b286-43c9-a09a-a4d2e9f18e56
McArdle, P.
040982f4-c628-4685-a199-98634261a1ca
Cunningham, D.
02b4fd3a-f452-4419-96a7-f98f609f098d
Sadeh, E.
71f7e25c-2a8a-4109-bd04-422edf4d2053
Gottlieb, H.E.
e3541356-c8c1-439e-8f75-db9237bd0597
Goldschmidt, Z.
d6eb846f-eb47-4e55-afd1-0cd5d3f44f33
Hursthouse, M.B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Light, M.E.
d04ad463-ba94-4c59-ab35-a64901f32501
Howell, J.A.S.
8d2961a7-06de-4cc9-a79a-e081dce914b4
Fey, N.
e85f0d6f-9873-48ef-85cf-b343dc52b329
Lovatt, J.D.
dfbe888c-9dd1-48a7-b87b-88dae0e05100
Yates, P.C.
2bc528ac-b286-43c9-a09a-a4d2e9f18e56
McArdle, P.
040982f4-c628-4685-a199-98634261a1ca
Cunningham, D.
02b4fd3a-f452-4419-96a7-f98f609f098d
Sadeh, E.
71f7e25c-2a8a-4109-bd04-422edf4d2053
Gottlieb, H.E.
e3541356-c8c1-439e-8f75-db9237bd0597
Goldschmidt, Z.
d6eb846f-eb47-4e55-afd1-0cd5d3f44f33
Hursthouse, M.B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Light, M.E.
d04ad463-ba94-4c59-ab35-a64901f32501

Howell, J.A.S., Fey, N., Lovatt, J.D., Yates, P.C., McArdle, P., Cunningham, D., Sadeh, E., Gottlieb, H.E., Goldschmidt, Z., Hursthouse, M.B. and Light, M.E. (1999) Effect of fluorine and trifluoromethyl substitution on the donor properties and stereodynamical behaviour of triarylphosphines. Journal of the Chemical Society, Dalton Transactions, (17), 3015-3028.

Record type: Article

Abstract

A series of 2-, 3- or 4-trifluoromethyl substituted triarylphosphines and their oxide, chalcogenide and Fe(CO)(4) derivatives have been prepared and characterised spectroscopically and crystallographically. Electronic effects of CF3 substitution are cumulative and felt equally in the 2, 3 or 4 position. Substitution in the 2 position substantially hinders the complexing ability for steric reasons. Correlated P-C rotation in the 2-substituted derivatives has been analysed by variable temperature NMR and molecular mechanics calculations.

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More information

Published date: 1999
Keywords: x-ray crystal, nuclear-magnetic-resonance, p-se bond, molecular-structures, spectroscopic characterization, homogeneous catalysis, correlated rotation, complexes, phosphine, selenide

Identifiers

Local EPrints ID: 39130
URI: http://eprints.soton.ac.uk/id/eprint/39130
PURE UUID: 615df7db-1179-4037-bc92-282c4340c18c

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Date deposited: 17 Jul 2006
Last modified: 08 Jan 2022 06:57

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Contributors

Author: J.A.S. Howell
Author: N. Fey
Author: J.D. Lovatt
Author: P.C. Yates
Author: P. McArdle
Author: D. Cunningham
Author: E. Sadeh
Author: H.E. Gottlieb
Author: Z. Goldschmidt
Author: M.B. Hursthouse
Author: M.E. Light

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