TY - JOUR
T1 - Linkage-structure dependences of the spectroscopic and photophysical properties of anthracene derivatives
T2 - Tri(9-anthryl)benzene and tri(9-anthryl)borane
AU - Kitamura, Noboru
AU - Sakuda, Eri
AU - Iwahashi, Yoshie
AU - Tsuge, Kiyoshi
AU - Sasaki, Yoichi
AU - Ishizaka, Shoji
N1 - Funding Information:
This work was supported by Grant-in-Aids for Science Research on Priority Research Areas (Nos. 19027002 and 20036002, Synergy Elements) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan. E. S. acknowledges Japan Society for the Promotion of Science for a research fellowship for young scientists.
PY - 2009/9/5
Y1 - 2009/9/5
N2 - The spectroscopic and photophysical properties of 1,3-di(9-anthryl)benzene (DAB), 1,3,5-tri(9-anthryl)benzene (TAB), and tri(9-anthryl)borane (TABO) in tetrahydrofuran were reported, together with those of 9-phenylanthracene (MAB). Although MAB, DAB, and TAB showed structured absorption spectra similar to the 1La band of anthracene in the wavelength region of 300-400 nm, the molar absorption coefficient at the maximum wavelength of TAB was as large as ∼4.2 as compared with that of MAB. Detailed analysis of the absorption data indicated that the absorption transition moment of MAB, DAB, or TAB was 3.3, 4.3, or 6.4 D, respectively. The large absorption transition moment of TAB was discussed on the basis of the electron density distributions in the highest-energy occupied and lowest-energy unoccupied molecular orbitals. In contrast to TAB, TABO exhibited characteristic broad and structureless absorption and fluorescence spectra. The large differences in the spectroscopic and photophysical properties between TAB and TABO were discussed in terms of the effects of the chemical structure of the terminal unit connecting three anthryl groups.
AB - The spectroscopic and photophysical properties of 1,3-di(9-anthryl)benzene (DAB), 1,3,5-tri(9-anthryl)benzene (TAB), and tri(9-anthryl)borane (TABO) in tetrahydrofuran were reported, together with those of 9-phenylanthracene (MAB). Although MAB, DAB, and TAB showed structured absorption spectra similar to the 1La band of anthracene in the wavelength region of 300-400 nm, the molar absorption coefficient at the maximum wavelength of TAB was as large as ∼4.2 as compared with that of MAB. Detailed analysis of the absorption data indicated that the absorption transition moment of MAB, DAB, or TAB was 3.3, 4.3, or 6.4 D, respectively. The large absorption transition moment of TAB was discussed on the basis of the electron density distributions in the highest-energy occupied and lowest-energy unoccupied molecular orbitals. In contrast to TAB, TABO exhibited characteristic broad and structureless absorption and fluorescence spectra. The large differences in the spectroscopic and photophysical properties between TAB and TABO were discussed in terms of the effects of the chemical structure of the terminal unit connecting three anthryl groups.
KW - Fluorescence rate constant
KW - Transition dipole moment
KW - Tri(9-anthryl)benzene
KW - Tri(9-anthryl)borane
UR - http://www.scopus.com/inward/record.url?scp=69649098127&partnerID=8YFLogxK
U2 - 10.1016/j.jphotochem.2009.01.003
DO - 10.1016/j.jphotochem.2009.01.003
M3 - 学術論文
AN - SCOPUS:69649098127
SN - 1010-6030
VL - 207
SP - 102
EP - 108
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
IS - 1
ER -