Nonphotochemical hole burning of self-aggregated dimers of chlorophyll a in polystyrene

Nonphotochemical hole burning of self-aggregated dimers of chlorophyll a in polystyrene

Nonphotochemical hole burning is reported for several burn frequencies throughout the inhomogeneous profiles of chlorophyll a Q/sub y/(0-0) dimer bands in polystyrene films. The holes burned at T = 1.8 K are stable and show no spontaneous hole filling at short times (approx. 1 h). The hole width ass...

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Veröffentlicht in:J. Phys. Chem.; (United States) 1986-05, Vol.90 (10), p.1997-1998
Hauptverfasser: Carter, T. P, Small, G. J
Format: Artikel
Sprache:eng
Schlagworte:
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
400500 - Photochemistry
Applied sciences
Biological and medical sciences
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLOROPHYLL
DATA
DIMERS
Exact sciences and technology
EXPERIMENTAL DATA
Fundamental and applied biological sciences. Psychology
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
MATERIALS
Molecular biophysics
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
Other techniques and industries
PETROCHEMICALS
PETROLEUM PRODUCTS
PHOTOCHEMICAL REACTIONS
Photochemistry. Photosynthesis. Bioluminescence
PHYTOCHROMES
PIGMENTS
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
PORPHYRINS
PROTEINS
Radiation-biomolecule interaction
SYNTHETIC MATERIALS
ULTRALOW TEMPERATURE
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Zusammenfassung:Nonphotochemical hole burning is reported for several burn frequencies throughout the inhomogeneous profiles of chlorophyll a Q/sub y/(0-0) dimer bands in polystyrene films. The holes burned at T = 1.8 K are stable and show no spontaneous hole filling at short times (approx. 1 h). The hole width associated with the lowest dimer component has a value of 0.16 +/- 0.03 cm/sup -1/ at 1.8 K. 17 references, 1 figure.
ISSN:0022-3654
1541-5740
DOI:10.1021/j100401a006