TY - JOUR
T1 - Spectral properties of several fluorene derivatives with potential as two-photon fluorescent dyes
AU - Belfield, K. D.
AU - Bondar, M. V.
AU - Przhonska, O. V.
AU - Schafer, K. J.
AU - Mourad, W.
N1 - Funding Information:
The National Science Foundation (ECS-9970078, DMR9975773), the Research Corporation Cottrell College Science Award (CC5051), and the donors of The Petroleum Research Fund of the American Chemical Society (35115-B4) are gratefully acknowledged for partial support of this work. KDB and MVB would also like to acknowledge the National Research Council COBASE program for support.
PY - 2002/5
Y1 - 2002/5
N2 - Investigations of the absorption, steady-state fluorescence, excitation and excitation anisotropy properties of several fluorene derivatives, (7-benzothiazol-2-yl-9,9-didecylfluoren-2-yl)-diphenylamine, 9,9-didecyl-2,7-bis-(N,N-diphenylamino)fluorene and {4-[2-(7-diphenylamino-9,9-diethylfluoren-2-yl)vinyl]phenyl}phosphoric acid diethyl ester, in liquid solutions have been conducted. Spectral characteristics of these compounds, including fluorescence quantum yields, were measured in acetonitrile, methylene chloride, tetrahydrofuran and hexane at room temperature. Excitation anisotropy spectra provided a means to determine the nature of the short wavelength absorption bands as an electronic transition into a higher excited singlet state. It was found that excitation spectra in the short wavelength region do not correspond to the absorption bands that are correlated with the wavelength dependence of the fluorescence quantum yields. Major reasons of such spectral behavior are discussed.
AB - Investigations of the absorption, steady-state fluorescence, excitation and excitation anisotropy properties of several fluorene derivatives, (7-benzothiazol-2-yl-9,9-didecylfluoren-2-yl)-diphenylamine, 9,9-didecyl-2,7-bis-(N,N-diphenylamino)fluorene and {4-[2-(7-diphenylamino-9,9-diethylfluoren-2-yl)vinyl]phenyl}phosphoric acid diethyl ester, in liquid solutions have been conducted. Spectral characteristics of these compounds, including fluorescence quantum yields, were measured in acetonitrile, methylene chloride, tetrahydrofuran and hexane at room temperature. Excitation anisotropy spectra provided a means to determine the nature of the short wavelength absorption bands as an electronic transition into a higher excited singlet state. It was found that excitation spectra in the short wavelength region do not correspond to the absorption bands that are correlated with the wavelength dependence of the fluorescence quantum yields. Major reasons of such spectral behavior are discussed.
KW - Electronic transitions
KW - Emission spectra
KW - Excitation anisotropy
KW - Excitation spectra
KW - Fluorene derivatives
KW - Photophysical properties
UR - https://www.scopus.com/pages/publications/0036565807
UR - https://www.scopus.com/pages/publications/0036565807#tab=citedBy
U2 - 10.1016/S0022-2313(02)00216-8
DO - 10.1016/S0022-2313(02)00216-8
M3 - Article
AN - SCOPUS:0036565807
SN - 0022-2313
VL - 97
SP - 141
EP - 146
JO - Journal of Luminescence
JF - Journal of Luminescence
IS - 2
ER -