Photoinduced electron transfer in a hexaphenylbenzene-based self-assembled porphyrin-fullerene triad

被引：19

作者：

Terazono, Yuichi ^{[1
]}

Kodis, Gerdenis ^{[1
]}

Liddell, Paul A. ^{[1
]}

Garg, Vikas ^{[1
]}

Gervaldo, Miguel ^{[1
]}

Moore, Thomas A. ^{[1
]}

Moore, Ana L. ^{[1
]}

Gust, Devens ^{[1
]}

机构：

[1] Arizona State Univ, Dept Chem & Biochem, Ctr Study Early Events Photosynthesis, Tempe, AZ 85287 USA

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 2007年 / 83卷 / 02期

关键词：

D O I：

10.1562/2006-12-05-RC-1098

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A hexaphenylbenzene-based zinc porphyrin dyad forms a 1:1 complex with a fullerene bearing two pyridyl groups via coordination of the pyridyl nitrogens with the zinc atoms. The fullerene is symmetrically located between the two zinc porphyrins. The binding constant for the complex is 7.3 x 10(4) M-1 in 1,2-difluorobenzene. Photoinduced electron transfer from a porphyrin first excited singlet state to the fullerene occurs with a time constant of 3 ps, and the resulting charge-separated state has a lifetime of 230 ps. This self-assembled construct should form a basis for the construction of more elaborate model photosynthetic antenna-reaction center systems.

引用

收藏

页码：464 / 469

页数：6

相关论文

共 42 条

[1] Synthesis, photochemistry, and electrochemistry of single-wall carbon nanotubes with pendent pyridyl groups and of their metal complexes with zinc porphyrin. Comparison with pyridyl-bearing fullerenes [J].

Alvaro, Mercedes ;

Atienzar, Pedro ;

de la Cruz, Pilar ;

Delgado, Juan L. ;

Troiani, Vincent ;

Garcia, Hermenegildo ;

Langa, Fernando ;

Palkar, Amit ;

Echegoyen, Luis .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (20) :6626-6635

[2] A new pyridyl-substituted methanofullerene derivative.: Photophysics, electrochemistry and self-assembly with zinc(II) meso-tetraphenylporphyrin (ZnTPP) [J].

Armaroli, N ;

Diederich, F ;

Echegoyen, L ;

Habicher, T ;

Flamigni, L ;

Marconi, G ;

Nierengarten, JF .

NEW JOURNAL OF CHEMISTRY, 1999, 23 (01) :77-83

[3] Photoswitched singlet energy transfer in a porphyrin-spiropyran dyad [J].

Bahr, JL ;

Kodis, G ;

de la Garza, L ;

Lin, S ;

Moore, AL ;

Moore, TA ;

Gust, D .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (29) :7124-7133

[4] Axial coordination to metalloporphyrins leading to multinuclear assemblies [J].

Bouamaied, Imenne ;

Coskun, Timur ;

Stulz, Eugen .

NON-COVALENT MULTI-PORPHYRIN ASSEMBLIES SYNTHESIS AND PROPERTIES, 2006, 121 :1-47

[5]

Bourgeois JP, 2001, HELV CHIM ACTA, V84, P1207, DOI 10.1002/1522-2675(20010516)84:5<1207::AID-HLCA1207>3.0.CO

[6]

2-B

[7] Excitation energy transport processes of porphyrin monomer, dimer, cyclic trimer, and hexamer probed by ultrafast fluorescence anisotropy decay [J].

Cho, HS ;

Rhee, H ;

Song, JK ;

Min, CK ;

Takase, M ;

Aratani, N ;

Cho, S ;

Osuka, A ;

Joo, T ;

Kim, D .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (19) :5849-5860

[8] Photoinduced electron transfer in supramolecular systems of fullerenes functionalized with ligands capable of binding to zinc porphyrins and zinc phthalocyanines [J].

D'Souza, F ;

Ito, O .

COORDINATION CHEMISTRY REVIEWS, 2005, 249 (13-14) :1410-1422

[9] Energy transfer followed by electron transfer in a supramolecular triad composed of boron dipyrrin, zinc porphyrin, and fullerene: A model for the photosynthetic antenna-reaction center complex [J].

D'Souza, F ;

Smith, PM ;

Zandler, ME ;

McCarty, AL ;

Itou, M ;

Araki, Y ;

Ito, O .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (25) :7898-7907

[10] Supramolecular porphyrin-fullerene via 'two-point' binding strategy:: Axial-coordination and cation-crown ether complexation [J].

D'Souza, F ;

Chitta, R ;

Gadde, S ;

Zandler, ME ;

Sandanayaka, ASD ;

Araki, Y ;

Ito, O .

CHEMICAL COMMUNICATIONS, 2005, (10) :1279-1281

← 1 2 3 4 5 →