Photophysical and photosensitizing properties of brominated porphycenes.
A heavy atom, bromine, was directly substituted into the porphycene macrocycle to promote intersystem crossing by way of spin-orbit coupling. The singlet oxygen production ability of the porphycene is dramatically enhanced, and the highest value of 0.95 for the quantum yield of singlet oxygen generation (PhiDelta) was obtained for the dibrominated porphycene by visible light excitation.
Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Motooka, Fukuoka, 819-0395, Japan.
Hisashi
H
Shimakoshi
Tatsushi
T
Baba
Yusuke
Y
Iseki
Isao
I
Aritome
Ayataka
A
Endo
Chihaya
C
Adachi
Yoshio
Y
Hisaeda