Comparison of the photochemistry of organometallic N-heterocyclic carbene and phosphine complexes of manganese

Madeeha Batool, Thomas A. Martin, Abu Naser, Michael W. George, Stuart A. Macgregor, Mary F. Mahon, Michael K. Whittlesey

Research output: Contribution to journalArticle

Abstract

Time-resolved IR (TRIR) studies on (eta(5)-C5H4Me)Mn(L)(CO) (L = 1,3-diethyl-4,5-dimethylimidazol-2-ylidene, PPh3) indicate that the rate of reaction with CO is ca. 10(2) slower for the N-heterocyclic carbene intermediate, which DFT calculations suggest is due to the presence of a strong Mn center dot center dot center dot H-C agostic bond. The reactivity of these intermediates in alkane solvents is governed by such interactions rather than solvent coordination to the unsaturated metal centre.

Original languageEnglish
Pages (from-to)11225-11227
Number of pages3
JournalChemical Communications
Volume47
Issue number40
DOIs
Publication statusPublished - 2011

Cite this

Batool, Madeeha ; Martin, Thomas A. ; Naser, Abu ; George, Michael W. ; Macgregor, Stuart A. ; Mahon, Mary F. ; Whittlesey, Michael K. / Comparison of the photochemistry of organometallic N-heterocyclic carbene and phosphine complexes of manganese. In: Chemical Communications. 2011 ; Vol. 47, No. 40. pp. 11225-11227.
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Comparison of the photochemistry of organometallic N-heterocyclic carbene and phosphine complexes of manganese. / Batool, Madeeha; Martin, Thomas A.; Naser, Abu; George, Michael W.; Macgregor, Stuart A.; Mahon, Mary F.; Whittlesey, Michael K.

In: Chemical Communications, Vol. 47, No. 40, 2011, p. 11225-11227.

Research output: Contribution to journalArticle

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T1 - Comparison of the photochemistry of organometallic N-heterocyclic carbene and phosphine complexes of manganese

AU - Batool, Madeeha

AU - Martin, Thomas A.

AU - Naser, Abu

AU - George, Michael W.

AU - Macgregor, Stuart A.

AU - Mahon, Mary F.

AU - Whittlesey, Michael K.

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AB - Time-resolved IR (TRIR) studies on (eta(5)-C5H4Me)Mn(L)(CO) (L = 1,3-diethyl-4,5-dimethylimidazol-2-ylidene, PPh3) indicate that the rate of reaction with CO is ca. 10(2) slower for the N-heterocyclic carbene intermediate, which DFT calculations suggest is due to the presence of a strong Mn center dot center dot center dot H-C agostic bond. The reactivity of these intermediates in alkane solvents is governed by such interactions rather than solvent coordination to the unsaturated metal centre.

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