Long-Lived Photoinduced Charge Separation in Inclusion Complexes Composed of a Phenothiazine-Bridged Cyclic Porphyrin Dimer and Fullerenes-猫眼课题宝

DOI：

10.1021/acs.jpcc.5b09147

发表时间：

2015-10

期刊：

Journal of Physical Chemistry C

影响因子：

3.7

通讯作者：

中科院分区：

化学3区

文献类型：

作者：

Takuya Kamimura;K. Ohkubo;Y. Kawashima;Shuwa Ozako;Ken-ichi Sakaguchi;S. Fukuzumi;F. Tani

C60、[6,6]-苯基-C61-丁酸甲酯 (PCBM)、锂阳离子封装的 C60 (Li+@C60) 和 [6,6]-二苯基-C62-双(丁酸甲酯) (bis-PCBM) 被包含在吩噻嗪桥环游离碱卟啉二聚体 (H4-Ptz-CPDPy(TEO)) 中极性溶剂（苯甲腈），缔合常数分别为 1.3 × 106、6.4 × 105、3.2 × 106 和 2.5 × 105 M–1。根据电化学数据，H4-Ptz-CPDPy(TEO)与C60、PCBM、Li+@C60和bis-PCBM的包合物的电荷分离(CS)态的最低能级(指定为C60⊂H4-Ptz-CPDPy(TEO)、PCBM⊂H4-Ptz-CPDPy(TEO)，由吩噻嗪供体和富勒烯受体组成的Li+@C60⊂H4-Ptz-CPDPy(TEO)和bis-PCBM⊂H4-Ptz-CPDPy(TEO))分别测定为1.30、1.40、0.66和1.51 eV。 C60⊂H4-Ptz-CPDPy(TEO) 和 PCBM⊂H4-Ptz-CPDPy(TEO) 在卟啉和富勒烯发色团的光激发下发生电子转移，产生的光诱导 CS 态...

C60, [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), lithium-cation-encapsulated C60 (Li+@C60), and [6,6]-diphenyl-C62-bis(butyric acid methyl ester) (bis-PCBM) were included into a phenothiazine-bridged cyclic free-base porphyrin dimer (H4-Ptz-CPDPy(TEO)) in a polar solvent (benzonitrile) with large association constants of 1.3 × 106, 6.4 × 105, 3.2 × 106, and 2.5 × 105 M–1, respectively. Based on the electrochemical data, the lowest energy levels of the charge-separated (CS) states for the inclusion complexes of H4-Ptz-CPDPy(TEO) with C60, PCBM, Li+@C60, and bis-PCBM (designated as C60⊂H4-Ptz-CPDPy(TEO), PCBM⊂H4-Ptz-CPDPy(TEO), Li+@C60⊂H4-Ptz-CPDPy(TEO), and bis-PCBM⊂H4-Ptz-CPDPy(TEO)) composed of the phenothiazine donor and fullerene acceptors were determined to be 1.30, 1.40, 0.66, and 1.51 eV, respectively. Both C60⊂H4-Ptz-CPDPy(TEO) and PCBM⊂H4-Ptz-CPDPy(TEO) underwent electron transfer upon photoexcitation of the porphyrin and fullerene chromophores, and the resultant photoinduced CS states comp...

Long-Lived Photoinduced Charge Separation in Inclusion Complexes Composed of a Phenothiazine-Bridged Cyclic Porphyrin Dimer and Fullerenes

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