Excitation transport in glycerol solutions of rhodamine 640: absence of orientational correlation

Journal Article · Thu Dec 01 04:00:00 EST 1988 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100335a021· OSTI ID:5994914

Causgrove, T P; Bellefeuille, S M; Struve, W S

Electronic excitation transport (EET) was studied for 0.246-5.61 mM solutions of rhodamine 640 in glycerol by obtaining anisotropic fluorescence profiles through time-correlated single-photon counting. These experiments were compared with polarized ground-state recovery dynamics monitored in pump=probe experiments. Unlike 3,3'-diethyloxadicarbocyanine iodide (DODCI) in glycerol, rhodamine 640 in glycerol exhibits EET that conforms closely with the two-particle Huber theory for concentrations up to 5.61 mM. The absence of the discrepancies observed for DODCI in glycerol indicates that the rhodamine 640 S/sub 0/ ..-->.. S/sub 1/ transition moments are randomly moments are randomly oriented in this solvent.

• Research Organization: Iowa State Univ., Ames (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5994914
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:24; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
AMINES
CARBOXYLIC ACIDS
DATA
DEPOLARIZATION
DYES
ELECTRONIC STRUCTURE
EMISSION SPECTROSCOPY
ENERGY TRANSFER
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
GLYCEROL
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
REAGENTS
RHODAMINES
SPECTROSCOPY