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Cohen BW, Lovaasen BM, Simpson CK, et al. 1000-fold enhancement of luminescence lifetimes via energy-transfer equilibration with the T1 state of Zn(TPP). Inorg Chem. 2010;49(13):5777-9doi: 10.1021/ic100316s.
Cohen, B. W., Lovaasen, B. M., Simpson, C. K., Cummings, S. D., Dallinger, R. F., & Hopkins, M. D. (2010). 1000-fold enhancement of luminescence lifetimes via energy-transfer equilibration with the T1 state of Zn(TPP). Inorganic chemistry, 49(13), 5777-9. https://doi.org/10.1021/ic100316s
Cohen, Brian W, et al. "1000-fold enhancement of luminescence lifetimes via energy-transfer equilibration with the T1 state of Zn(TPP)." Inorganic chemistry vol. 49,13 (2010): 5777-9. doi: https://doi.org/10.1021/ic100316s
Cohen BW, Lovaasen BM, Simpson CK, Cummings SD, Dallinger RF, Hopkins MD. 1000-fold enhancement of luminescence lifetimes via energy-transfer equilibration with the T1 state of Zn(TPP). Inorg Chem. 2010 Jul 05;49(13):5777-9. doi: 10.1021/ic100316s. PMID: 20521796.
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Inorg Chem. 2010 Jul 05;49(13):5777-9. doi: 10.1021/ic100316s.

1000-fold enhancement of luminescence lifetimes via energy-transfer equilibration with the T1 state of Zn(TPP).

Inorganic chemistry

Brian W Cohen, Benjamin M Lovaasen, Cheslan K Simpson, Scott D Cummings, Richard F Dallinger, Michael D Hopkins

Affiliations

  1. Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, USA.

PMID: 20521796 DOI: 10.1021/ic100316s

Abstract

The new zinc porphyrin/tungsten alkylidyne dyad Zn(TPP)-C[triple bond]CC(6)H(4)C[triple bond]W(dppe)(2)Cl (1) possesses novel photophysical properties that arise from a tunable excited-state triplet-triplet equilibrium between the porphyrin and tungsten alkylidyne units. Dyad 1 exhibits (3)(d(xy) <-- pi*(WCR)) phosphorescence with a lifetime that is 20 times longer than that of the parent chromophore W(CC(6)H(4)CCPh)(dppe)(2)Cl (2). The triplet-triplet equilibrium can be tuned by the addition of ligands to the Zn center, resulting in phosphorescence lifetimes for 1(L) that are up to 1300 times longer than that of 2. The "lifetime reservoir" effect exhibited by 1(L) is approximately 1 order of magnitude larger than previously reported examples of the phenomenon.

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