Issue 40, 2011
From the journal:

Chemical Communications

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

Madeeha Batool,a   Thomas A. Martin,b   M. Abu Naser,c   Michael W. George,*a   Stuart A. Macgregor,*c   Mary F. Mahonb  and  Michael K. Whittlesey*b  

* Corresponding authors

a School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
E-mail: mike.george@nottingham.ac.uk
Fax: 44 115 9513555
Tel: 44 115 9513512

b Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
E-mail: chsmkw@bath.ac.uk
Fax: 44 1225 386231
Tel: 44 1225 383748

c School of Engineering and Physical Sciences-Chemistry, Heriot-Watt University, Edinburgh EH14 4AS, UK
E-mail: S.A.Macgregor@hw.ac.uk
Fax: 44 131 4513180
Tel: 44 131 4518031

Abstract

Time-resolved IR (TRIR) studies on (η5-C5H4Me)Mn(L)(CO) (L = 1,3-diethyl-4,5-dimethylimidazol-2-ylidene, PPh3) indicate that the rate of reaction with CO is ca. 102 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.

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

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Article information

DOI
https://doi.org/10.1039/C1CC14467G
Article type
Communication
Submitted
22 Jul 2011
Accepted
12 Aug 2011
First published
15 Sep 2011

Chem. Commun., 2011,47, 11225-11227

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

M. Batool, T. A. Martin, M. A. Naser, M. W. George, S. A. Macgregor, M. F. Mahon and M. K. Whittlesey, Chem. Commun., 2011, 47, 11225 DOI: 10.1039/C1CC14467G

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