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

Madeeha Batool; Thomas A. Martin; M. Abu Naser; Michael W. George; Stuart A. MacGregor; Mary F. Mahon; Michael K. Whittlesey

doi:10.1039/c1cc14467g

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

Madeeha Batool, Thomas A. Martin, M. Abu Naser, Michael W. George^*, Stuart A. MacGregor, Mary F. Mahon, Michael K. Whittlesey

^*Corresponding author for this work

School of Chemistry

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Abstract

Time-resolved IR (TRIR) studies on (η⁵-C₅H ₄Me)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⋯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 language	English
Pages (from-to)	11225-11227
Number of pages	3
Journal	Chemical Communications
Volume	47
Issue number	40
DOIs	https://doi.org/10.1039/c1cc14467g
Publication status	Published - 28 Oct 2011

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title = "Comparison of the photochemistry of organometallic N-heterocyclic carbene and phosphine complexes of manganese",

abstract = "Time-resolved IR (TRIR) studies on (η5-C5H 4Me)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⋯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.",

author = "Madeeha Batool and Martin, {Thomas A.} and Naser, {M. Abu} and George, {Michael W.} and MacGregor, {Stuart A.} and Mahon, {Mary F.} and Whittlesey, {Michael K.}",

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doi = "10.1039/c1cc14467g",

language = "English",

volume = "47",

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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, M. Abu

AU - George, Michael W.

AU - MacGregor, Stuart A.

AU - Mahon, Mary F.

AU - Whittlesey, Michael K.

PY - 2011/10/28

Y1 - 2011/10/28

N2 - Time-resolved IR (TRIR) studies on (η5-C5H 4Me)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⋯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.

AB - Time-resolved IR (TRIR) studies on (η5-C5H 4Me)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⋯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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VL - 47

SP - 11225

EP - 11227

JO - Chemical Communications

JF - Chemical Communications

IS - 40

ER -

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

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