TY - JOUR
T1 - A 1,3-phenylene-bridged hexameric porphyrin wheel and efficient excitation energy transfer along the wheel
AU - Jiang, Hua Wei
AU - Ham, Sujin
AU - Aratani, Naoki
AU - Kim, Dongho
AU - Osuka, Atsuhiro
PY - 2013/9/27
Y1 - 2013/9/27
N2 - A 1,3-phenylene-bridged hexameric ZnII porphyrin wheel was synthesized by a Suzuki-Miyaura coupling reaction through a one-pot or a stepwise route. The hexameric wheel structure was revealed by using X-ray diffraction analysis. The porphyrin wheel exhibits a split Soret band due to effective exciton coupling and displays efficient excitation energy transfer along the wheel. Measurements of fluorescence anisotropy decay and pump-power-dependent decay reveal a rapid excitation energy hopping along the wheel with a rate of 1.4 ps. Wheels in motion: A 1,3-phenylene-bridged hexameric ZnII porphyrin wheel (see figure) was synthesized by using a Suzuki-Miyaura coupling reaction through a one-pot or a stepwise route. The porphyrin wheel exhibits a split Soret band due to effective exciton coupling and displays efficient excitation energy transfer along the wheel, which has been probed by pump-power-dependent decay of femtosecond time-resolved transient absorption spectra.
AB - A 1,3-phenylene-bridged hexameric ZnII porphyrin wheel was synthesized by a Suzuki-Miyaura coupling reaction through a one-pot or a stepwise route. The hexameric wheel structure was revealed by using X-ray diffraction analysis. The porphyrin wheel exhibits a split Soret band due to effective exciton coupling and displays efficient excitation energy transfer along the wheel. Measurements of fluorescence anisotropy decay and pump-power-dependent decay reveal a rapid excitation energy hopping along the wheel with a rate of 1.4 ps. Wheels in motion: A 1,3-phenylene-bridged hexameric ZnII porphyrin wheel (see figure) was synthesized by using a Suzuki-Miyaura coupling reaction through a one-pot or a stepwise route. The porphyrin wheel exhibits a split Soret band due to effective exciton coupling and displays efficient excitation energy transfer along the wheel, which has been probed by pump-power-dependent decay of femtosecond time-resolved transient absorption spectra.
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U2 - 10.1002/chem.201302361
DO - 10.1002/chem.201302361
M3 - Article
C2 - 24026947
AN - SCOPUS:84884819603
SN - 0947-6539
VL - 19
SP - 13328
EP - 13336
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 40
ER -