Tuning the Electron Acceptor in Phthalocyanine-Based Electron Donor-Acceptor Conjugates

被引：11

作者：

Sekita, Michael ^{[2
,3
]}

Jimenez, Angel J. ^{[1
]}

Luisa Marcos, M. ^{[4
]}

Caballero, Esmeralda ^{[1
]}

Salome Rodriguez-Morgade, M. ^{[1
]}

Guldi, Dirk M. ^{[2
,3
]}

Torres, Tomas ^{[1
,5
]}

机构：

[1] Univ Autonoma Madrid, Dept Quim Organ, E-28049 Madrid, Spain

[2] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Germany

[3] Univ Erlangen Nurnberg, Interdisciplinary Ctr Mol Mat, D-91058 Erlangen, Germany

[4] Univ Autonoma Madrid, Dept Quim, E-28049 Madrid, Spain

[5] IMDEA Nanociencia, Fac Ciencias, Madrid 28049, Spain

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2015年 / 21卷 / 52期

关键词：

anhydrides; electron transfer; imides; perylene; phthalocyanine; SENSITIZED SOLAR-CELLS; ION PAIR STATES; ZINC PHTHALOCYANINE; PHOTOPHYSICAL PROPERTIES; DYE SENSITIZATION; CHARGE-TRANSFER; ENERGY-TRANSFER; SPECTROSCOPIC PROPERTIES; NANOCRYSTALLINE TIO2; PERYLENEDIIMIDE DYAD;

D O I：

10.1002/chem.201503237

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Zinc phthalocyanines (ZnPc) have been attached to the peri-position of a perylenemonoimide (PMI) and a perylenemonoanhydride (PMA), affording electron donor-acceptor conjugates 1 and 2, respectively. In addition, a perylene-monoimide-monoanhydride (PMIMA) has been connected to a ZnPc through its imido position to yield the ZnPc-PMIMA conjugate 10. The three conjugates have been studied for photoinduced electron transfer. For ZnPc-PMIMA 10, electron transfer occurs upon both ZnPc and PMIMA excitation, giving rise to a long-lived (340 ps) charge-separated state. For ZnPc-PMI 1 and ZnPc-PMA 2, stabilization of the radical ion pair states by using polar media is necessary. In THF, photoexcitation of either ZnPc or PMI/PMA produces charge-separated states with lifetimes of 375 and 163 ps, respectively.

引用

页码：19028 / 19040

页数：13

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