Intramolecular photoassociation and photoinduced charge transfer in bridged diaryl compounds. 1. Photoassociation in the lowest triplet state of 2,2 prime -dinaphthylmethane and 2,2 prime -dinaphthyl ether

Journal Article · Thu Nov 14 00:00:00 EST 1991 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100176a022· OSTI ID:7161712

Modiano, S H; Dresner, J; Lim, E C ^[1]

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1. Univ. of Akron, OH (United States)

Formation of intramolecular triplet excimers in bridged diaryls is demonstrated for 2,2{prime}-dinaphthylmethane (2,2{prime}-DNM) and 2,2{prime}-dinaphthyl ether (2,2{prime}-DNE) using time-resolved absorption and emission (fluorescence and phosphorescence) spectroscopy. Comparison of the spectra of the ground-state dimer trapped in low-temperature glassy matrices with those of the molecules in fluid solution at room temperature suggests that the conformation of the intramolecular triplet excimers is similar to that of the corresponding ground-state-formed van der Waals dimers. Triplet-triplet annihilation of the excimer leading to the formation of the intramolecular excited singlet dimer at room temperature is also reported.

• DOE Contract Number: FG02-89ER14024
• OSTI ID: 7161712
• Journal Information: Journal of Physical Chemistry; (United States), Vol. 95:23; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CONDENSED AROMATICS
PHOTOCHEMICAL REACTIONS
ETHERS
ABSORPTION SPECTROSCOPY
EMISSION SPECTROSCOPY
EXCITED STATES
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
GROUND STATES
MATRIX ISOLATION
PHOSPHORESCENCE
TIME RESOLUTION
VAN DER WAALS FORCES
AROMATICS
CHEMICAL REACTIONS
DATA
ENERGY LEVELS
INFORMATION
LUMINESCENCE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
RESOLUTION
SPECTROSCOPY
TIMING PROPERTIES
400500* - Photochemistry