Work

A Re-evaluation of the Photophysical Properties of 1,4-Bis(phenylethynyl)benzene: A Model for Poly(phenyleneethynylene)

Year: 2002

Type: article

Abstract: Photophysical measurements, recorded in aerated cyclohexane at 283 K, indicate that 1,4-bis(phenylethynyl)benzene behaves in a conventional manner, undergoing emission from the lowest vibrational level of the first excited singlet state; there is no evidence for aggregation of this material in cyclohexane solution in the concentration range (1-250) x 10(-6) mol dm(-3). However, in highly viscous, low-temperature glasses, the material does exhibit inhomogeneous fluorescence behavior, and wavelength-dependent excitation and emission spectra, indicative of a slow rate of relaxation of conformers of the excited states compared to the rate of fluorescence.

Source: Journal of the American Chemical Society

DOI: 10.1021/ja025568h

Authors: Andrew Beeby, Karen Findlay, Paul J. Low, Todd B. Marder

Institution: Durham University

Language: English

Topic: Photochemistry and Electron Transfer Studies

Subfield: Physical and Theoretical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

Funders: Durham University, Engineering and Physical Sciences Research Council

OpenAlex ID: W2048334245

FWCI: 4.457

Cites: 24

Cited by: 171

Related to: 10