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Photoswitchable Luminescence of Rhenium(I) Tricarbonyl Diimines

Wenger, Oliver S. and Henling, Lawrence M. and Day, Michael W. and Winkler, Jay R. and Gray, Harry B. (2004) Photoswitchable Luminescence of Rhenium(I) Tricarbonyl Diimines. Inorganic Chemistry, 43 (6). pp. 2043-2048. ISSN 0020-1669. doi:10.1021/ic030324zd.

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The synthesis, characterization, and X-ray crystal structures of [Re(diimine)(CO)_3(dpe)](PF_6) (dpe = 1,2-di(4-pyridyl)ethylene) compounds are reported. The cis-dpe complexes exhibit yellow luminescence after UV excitation, whereas the trans-dpe counterparts are nonluminescent. The luminescence quantum yields of the cis-dpe complexes are strongly dependent on the identity of the diimine ligand. Irradiation (350 nm) of the trans-dpe complexes induces trans → cis dpe-ligand isomerization with quantum yields on the order of 0.2, and this process leads to an on-switching of yellow luminescence. After long 350-nm irradiation times, a steady state composed of roughly 70% cis- and 30% trans-dpe complexes is reached. The reverse cis → trans photoisomerization reaction is induced by irradiating the cis-dpe complexes at 250 nm, switching off the yellow luminescence. For 250-nm excitation, photodecomposition of the [Re(diimine)(CO)_3(dpe)]^+ complexes competes efficiently with photoisomerization.

Item Type:Article
Related URLs:
URLURL TypeDescription Information
Winkler, Jay R.0000-0002-4453-9716
Gray, Harry B.0000-0002-7937-7876
Additional Information:© 2004 American Chemical Society. Received 17 November 2003. Published online 17 February 2004. Published in print 1 March 2004. This work was supported by the National Science Foundation. O.S.W. acknowledges a postdoctoral fellowship from the Swiss National Science Foundation.
Funding AgencyGrant Number
Swiss National Science Foundation (SNSF)UNSPECIFIED
Issue or Number:6
Record Number:CaltechAUTHORS:20170425-095907901
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Official Citation:Photoswitchable Luminescence of Rhenium(I) Tricarbonyl Diimines Oliver S. Wenger, Lawrence M. Henling, Michael W. Day, Jay R. Winkler, and Harry B. Gray Inorganic Chemistry 2004 43 (6), 2043-2048 DOI: 10.1021/ic030324z
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76907
Deposited By: Ruth Sustaita
Deposited On:25 Apr 2017 19:24
Last Modified:15 Nov 2021 17:03

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