Electronic spectra and excited-state dynamics of van der Waals clusters of anthracene with aliphatic and aromatic ethers. Dependence of exciplex formation on donor (ether) ionization potential

Journal Article · Wed Nov 02 04:00:00 EST 1994 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00101a025· OSTI ID:6922896

Chakraborty, T; Sun, Sheng; Lim, E C ^[1]

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

We have carried out a systematic study of exciplex formation from photoexcited van der Waals complexes of anthracene with a variety of ethers, under collision-free conditions of a supersonic jet. Unlike some of the previously reported results, we have observed only narrow bands in the fluorescence excitation spectra. The exciplex fluorescence was observed only from the complex containing donor moiety with the lowest ionization potential (viz., 1,4-dimethoxybenzene), thus providing clear evidence for the dependence of exciplex formation on the ionization potential of the donor (ether) moiety. These results indicate that the energy of the charge transfer state relative to that of the initially prepared locally excited state determines the efficiency of the exciplex formation. In contrast to the previous report of exciplex formation in anthracene/diethyl ether and anthracene/anisole systems, we have observed only van der Waals type emissions from the locally excited states. 25 refs., 10 figs., 2 tabs.

• DOE Contract Number: FG02-89ER14024
• OSTI ID: 6922896
• Journal Information: Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 116:22; ISSN JACSAT; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
400500 -- Photochemistry
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
ANISOLE
ANTHRACENE
AROMATICS
CHEMICAL REACTIONS
COMPILED DATA
COMPLEXES
CONDENSED AROMATICS
DATA
EMISSION SPECTROSCOPY
ENERGY LEVELS
ETHERS
EXCITED STATES
FLUID FLOW
FLUORESCENCE SPECTROSCOPY
HYDROCARBONS
INFORMATION
IONIZATION POTENTIAL
JETS
LASERS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
SOLID CLUSTERS
SPECTROSCOPY
SUPERSONIC FLOW
SYNTHESIS