Photophysical triplet state processes of 4-H-1-benzopyrane-4-thione in a perfluoroalkane: Part 2. - Delayed S2 → S0 fluorescence due to triplet-triplet annihilation

Heike Eisenberger; Bernhard Nickel; Albert A. Ruth; Ronald P. Steer

doi:10.1039/FT9969200741

Photophysical triplet state processes of 4-H-1-benzopyrane-4-thione in a perfluoroalkane: Part 2. - Delayed S₂ → S₀ fluorescence due to triplet-triplet annihilation

Heike Eisenberger
, Bernhard Nickel
, Albert A. Ruth
, Ronald P. Steer

Max Planck Institute for Biophysical Chemistry (Karl Friedrich Bonhoeffer Institute)
Max-Planck-Institut für Biophysikalische Chemie
Department of Physics
University of Saskatchewan

Research output: Contribution to journal › Article › peer-review

Abstract

With 4-H-1-benzopyrane-4-thione (BPT) in perfluoro-1,3-dimethylcyclohexane a delayed monomer fluorescence S₂ → S₀ due to triplet-triplet annihilation (TTA) is observable. The probability of generating an S₂ state by the annihilation of two triplet states is ca. 0.03. The generation of S₂ by TTA can be interpreted as a special case of Förster energy transfer. There is no indication of a delayed fluorescence from an upper excimer state.

Original language	English
Pages (from-to)	741-746
Number of pages	6
Journal	Journal of the Chemical Society - Faraday Transactions
Volume	92
Issue number	5
DOIs	https://doi.org/10.1039/FT9969200741
Publication status	Published - 7 Mar 1996
Externally published	Yes

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10.1039/FT9969200741

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@article{6c1707b5e56446eb9a0acf5a8be420f1,

title = "Photophysical triplet state processes of 4-H-1-benzopyrane-4-thione in a perfluoroalkane: Part 2. - Delayed S2 → S0 fluorescence due to triplet-triplet annihilation",

abstract = "With 4-H-1-benzopyrane-4-thione (BPT) in perfluoro-1,3-dimethylcyclohexane a delayed monomer fluorescence S2 → S0 due to triplet-triplet annihilation (TTA) is observable. The probability of generating an S2 state by the annihilation of two triplet states is ca. 0.03. The generation of S2 by TTA can be interpreted as a special case of F{\"o}rster energy transfer. There is no indication of a delayed fluorescence from an upper excimer state.",

author = "Heike Eisenberger and Bernhard Nickel and Ruth, \{Albert A.\} and Steer, \{Ronald P.\}",

year = "1996",

month = mar,

day = "7",

doi = "10.1039/FT9969200741",

language = "English",

volume = "92",

pages = "741--746",

journal = "Journal of the Chemical Society - Faraday Transactions",

issn = "0956-5000",

publisher = "Royal Society of Chemistry",

number = "5",

}

Photophysical triplet state processes of 4-H-1-benzopyrane-4-thione in a perfluoroalkane: Part 2. - Delayed S₂ → S₀ fluorescence due to triplet-triplet annihilation. / Eisenberger, Heike; Nickel, Bernhard; Ruth, Albert A. et al.
In: Journal of the Chemical Society - Faraday Transactions, Vol. 92, No. 5, 07.03.1996, p. 741-746.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Photophysical triplet state processes of 4-H-1-benzopyrane-4-thione in a perfluoroalkane

T2 - Part 2. - Delayed S2 → S0 fluorescence due to triplet-triplet annihilation

AU - Eisenberger, Heike

AU - Nickel, Bernhard

AU - Ruth, Albert A.

AU - Steer, Ronald P.

PY - 1996/3/7

Y1 - 1996/3/7

N2 - With 4-H-1-benzopyrane-4-thione (BPT) in perfluoro-1,3-dimethylcyclohexane a delayed monomer fluorescence S2 → S0 due to triplet-triplet annihilation (TTA) is observable. The probability of generating an S2 state by the annihilation of two triplet states is ca. 0.03. The generation of S2 by TTA can be interpreted as a special case of Förster energy transfer. There is no indication of a delayed fluorescence from an upper excimer state.

AB - With 4-H-1-benzopyrane-4-thione (BPT) in perfluoro-1,3-dimethylcyclohexane a delayed monomer fluorescence S2 → S0 due to triplet-triplet annihilation (TTA) is observable. The probability of generating an S2 state by the annihilation of two triplet states is ca. 0.03. The generation of S2 by TTA can be interpreted as a special case of Förster energy transfer. There is no indication of a delayed fluorescence from an upper excimer state.

UR - https://www.scopus.com/pages/publications/33748600708

U2 - 10.1039/FT9969200741

DO - 10.1039/FT9969200741

M3 - Article

AN - SCOPUS:33748600708

SN - 0956-5000

VL - 92

SP - 741

EP - 746

JO - Journal of the Chemical Society - Faraday Transactions

JF - Journal of the Chemical Society - Faraday Transactions

IS - 5

ER -

Photophysical triplet state processes of 4-H-1-benzopyrane-4-thione in a perfluoroalkane: Part 2. - Delayed S₂ → S₀ fluorescence due to triplet-triplet annihilation

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