Silicon naphthalocyanine triplet state and oxygen. A reversible energy-transfer reaction

1988 ◽  
Vol 110 (23) ◽  
pp. 7626-7630 ◽  
Author(s):  
Patricia A. Firey ◽  
William E. Ford ◽  
James R. Sounik ◽  
Malcolm E. Kenney ◽  
Michael A. J. Rodgers
Keyword(s):  
Energy Transfer ◽  
Triplet State ◽  
Transfer Reaction

Sensitized Liquid Phase Room Temperature Phosphorescence Applied to the Detection of Polychloronaphthalenes: The Influence of the Reversed Energy Transfer Reaction on the Linearity

1983 ◽  
Vol 37 (2) ◽  
pp. 188-192 ◽  
Author(s):  
J. J. Donkerbroek ◽  
A. C. Veltkamp ◽  
A. J. J. Praat ◽  
C. Gooijer ◽  
R. W. Frei ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Liquid Phase ◽  
Triplet State ◽  
Room Temperature ◽  
Transfer Reaction ◽  
Detection Limits ◽  
Theoretical Treatment ◽  
Quantitative Interpretation ◽  
Room Temperature Phosphorescence

The detection of a series of polychloronaphthalenes (PCN's), i.e., mono-, di-, tri-, and tetra-substituted compounds, via sensitized room temperature phosphorescence of biacetyl in azeotropic acetonitrile/water is investigated. The detection limits are on the order of 10−8 to 10−9 M, except for 1,2,3-trichloro- and 1,2,3,4-tetrachloronaphthalene, and are comparable to those we obtained with fluorescence. Phosphorescence measurements at 77 K reveal that, with the exception of 1,2,3-trichloronaphthalene, for the tri- and tetra-substituted compounds the triplet state energies are lower than for biacetyl. Hence, for these PCN's the influence of the reversed energy transfer on the sensitized RTPL (room temperature phosphorescence in liquids) detection must be considered. On the basis of a theoretical treatment it is demonstrated that the reversed energy transfer manifests itself mainly via the linearity of the response. Furthermore, it is shown that the parameters needed for a quantitative interpretation of the results can be deduced from measurements of the direct phosphorescence of biacetyl.

ChemInform Abstract: Silicon Naphthalocyanine Triplet State and Oxygen: A Reversible Energy-Transfer Reaction.

ChemInform ◽  
1989 ◽  
Vol 20 (9) ◽  
Author(s):  
P. A. FIREY ◽  
W. E. FORD ◽  
J. R. SOUNIK ◽  
M. E. KENNEY ◽  
M. A. J. RODGERS
Keyword(s):  
Energy Transfer ◽  
Triplet State ◽  
Transfer Reaction

Rotational Distribution of CO(b3Σ+) Produced in Energy Transfer Reaction from Ar(3P2) to CO

1992 ◽  
Vol 65 (6) ◽  
pp. 1713-1715
Author(s):  
Masaharu Tsuji ◽  
Kazuo Yamaguchi ◽  
Mitsuo Kikukawa ◽  
Hiroyuki Kouno ◽  
Tsuyoshi Funatsu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Transfer Reaction ◽  
Rotational Distribution

Room temperature phosphorimetric determination of cyanide based on triplet state energy transfer

2003 ◽  
Vol 491 (1) ◽  
pp. 27-35 ◽  
Author(s):  
Marı́a Teresa Fernández-Argüelles ◽  
José M Costa-Fernández ◽  
Rosario Pereiro ◽  
Alfredo Sanz-Medel
Keyword(s):  
Energy Transfer ◽  
Triplet State ◽  
Room Temperature ◽  
State Energy ◽  
Triplet State Energy

Energy transfer from an alkene triplet state during pulse radiolysis

1976 ◽  
Vol 38 (2) ◽  
pp. 313-316 ◽  
Author(s):  
A.J.G. Barwise ◽  
A.A. Gorman ◽  
M.A.J. Rodgers
Keyword(s):  
Energy Transfer ◽  
Triplet State ◽  
Pulse Radiolysis

Ultrafast Energy And Electron Transfer In Conjugated Oligomer-Fullerene Molecules

2001 ◽  
Vol 665 ◽  
Author(s):  
P.A. van Hal ◽  
R.A.J. Janssen ◽  
G. Lanzani ◽  
G. Cerullo ◽  
M. Zavelani-Rossi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Time Constant ◽  
Transfer Reaction ◽  
Polar Solvent ◽  
Phenylene Vinylene ◽  
Intramolecular Electron Transfer ◽  
Pump Probe ◽  
Energy And Electron Transfer ◽  
Probe Spectroscopy

ABSTRACTThe intramolecular photoinduced energy and electron transfer within a fullereneoligothiophene-fullerene triad with nine thiophene units (C60-9T-C60) and an oligo(p-phenylene vinylene)-fullerene dyad with four phenyl groups (OPV4-C60) is investigated with femtosecond pump-probe spectroscopy with sub-10 fs and 200 fs time resolution in solvents of different polarity. Photoexcitation of the π-conjugated oligomer moiety in the triad and dyad results in an ultrafast singlet-energy transfer reaction to create the fullerene singlet-excited state with a time constant of 150-190 fs, irrespective of the polarity of the medium. In a polar solvent, intramolecular electron transfer occurs from the oligomer moiety to the C60 moiety with a time constant of 10-13 ps as a secondary reaction, subsequent to the ultrafast singlet-energy transfer. The charge-separated state has a lifetime of 50-80 ps and recombines to the ground state.

Measurement of gain on the 1.315-μm transition of atomic iodine as produced from the NCl(a1Δ) + I(2P 3/2 ) energy transfer reaction

1999 ◽  
Author(s):  
Thomas L. Henshaw ◽  
Timothy J. Madden ◽  
John M. Herbelin ◽  
Gerald C. Manke II ◽  
Brian T. Anderson ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Transfer Reaction ◽  
Atomic Iodine
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