Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes

Visible light irradiation of Cp*Ir(CO)2 (1) in pentafluorobenzontrile resulted in the formation of the two isomeric diiridium(II) complexes [Cp*Ir(μ-CO)(C6F4CN)]2 (3) and [Cp*Ir(CO)(C6F4CN)]2 (4), while the analogous reaction of 1 in hexafluorobenzene to give [Cp*Ir(μ-CO)(C6F5)]2 (3a) required UV...

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Main Authors:	Ganguly, Rakesh, Mak, Kar Hang Garvin, Chan, Pek Ke, Fan, Wai Yip, Leong, Weng Kee
Other Authors:	School of Physical and Mathematical Sciences
Format:	Article
Language:	English
Published:	2014
Subjects:	DRNTU::Science::Chemistry::Organic chemistry::Organometallic compounds
Online Access:	https://hdl.handle.net/10356/101390 http://hdl.handle.net/10220/18616
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Institution:	Nanyang Technological University
Language:	English

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spelling	sg-ntu-dr.10356-1013902023-02-28T19:41:22Z Photochemical reaction of CpIr(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes Ganguly, Rakesh Mak, Kar Hang Garvin Chan, Pek Ke Fan, Wai Yip Leong, Weng Kee School of Physical and Mathematical Sciences DRNTU::Science::Chemistry::Organic chemistry::Organometallic compounds Visible light irradiation of CpIr(CO)2 (1) in pentafluorobenzontrile resulted in the formation of the two isomeric diiridium(II) complexes [CpIr(μ-CO)(C6F4CN)]2 (3) and [CpIr(CO)(C6F4CN)]2 (4), while the analogous reaction of 1 in hexafluorobenzene to give [CpIr(μ-CO)(C6F5)]2 (3a) required UV irradiation. Complex 4 isomerizes to 3 under visible light irradiation. A reaction pathway to 4 involving aromatic nucleophilic substitution has been proposed on the basis of experimental and computational data. The isomerization of 4 to 3 is believed to proceed via a radical species resulting from homolytic fission of the Ir−Ir bond. ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2014-01-20T02:45:30Z 2019-12-06T20:37:46Z 2014-01-20T02:45:30Z 2019-12-06T20:37:46Z 2013 2013 Journal Article Mak, K. H. G., Chan, P. K., Fan, W. Y., Ganguly, R.,& Leong, W. K. (2013). Photochemical reaction of CpIr(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes. Organometallics, 32(4), 1053-1059. https://hdl.handle.net/10356/101390 http://hdl.handle.net/10220/18616 10.1021/om301055h en Organometallics © 2013 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by Organometallics, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/om301055h]. 7p. application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	DRNTU::Science::Chemistry::Organic chemistry::Organometallic compounds
spellingShingle	DRNTU::Science::Chemistry::Organic chemistry::Organometallic compounds Ganguly, Rakesh Mak, Kar Hang Garvin Chan, Pek Ke Fan, Wai Yip Leong, Weng Kee Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes
description	Visible light irradiation of CpIr(CO)2 (1) in pentafluorobenzontrile resulted in the formation of the two isomeric diiridium(II) complexes [CpIr(μ-CO)(C6F4CN)]2 (3) and [CpIr(CO)(C6F4CN)]2 (4), while the analogous reaction of 1 in hexafluorobenzene to give [CpIr(μ-CO)(C6F5)]2 (3a) required UV irradiation. Complex 4 isomerizes to 3 under visible light irradiation. A reaction pathway to 4 involving aromatic nucleophilic substitution has been proposed on the basis of experimental and computational data. The isomerization of 4 to 3 is believed to proceed via a radical species resulting from homolytic fission of the Ir−Ir bond.
author2	School of Physical and Mathematical Sciences
author_facet	School of Physical and Mathematical Sciences Ganguly, Rakesh Mak, Kar Hang Garvin Chan, Pek Ke Fan, Wai Yip Leong, Weng Kee
format	Article
author	Ganguly, Rakesh Mak, Kar Hang Garvin Chan, Pek Ke Fan, Wai Yip Leong, Weng Kee
author_sort	Ganguly, Rakesh
title	Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes
title_short	Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes
title_full	Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes
title_fullStr	Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes
title_full_unstemmed	Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes
title_sort	photochemical reaction of cp*ir(co)2 with c6f5x (x = cn, f) : formation of diiridium(ii) complexes
publishDate	2014
url	https://hdl.handle.net/10356/101390 http://hdl.handle.net/10220/18616
_version_	1759853912649629696

Photochemical reaction of Cp*Ir(CO)2 with C6F5X (X = CN, F) : formation of diiridium(II) complexes

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