Construction of a rigid Zn Porphyrin-C60 dyad within dendritic structure:: Dendrimer effect on singlet energy transfer

被引:33
作者
Kozaki, Masatoshi [1 ]
Akita, Kogen [1 ]
Suzuki, Shuichi [1 ]
Okada, Keiji [1 ]
机构
[1] Osaka City Univ, Grad Sch Sci, Sumiyoshi Ku, Osaka 5588585, Japan
关键词
D O I
10.1021/ol071296h
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A snowflake-shaped Zn porphyrin dendrimer with a C-60 terminal was prepared. Covalent linkage of the C-60 unit results in significant quenching of the Zn porphyrin fluorescence mainly due to energy transfer from the Zn porphyrin core to the C-60 terminal. Comparison of the energy-transfer efficiency with similar dendrons indicates that the dendritic structure considerably delays the energy-transfer rate.
引用
收藏
页码:3315 / 3318
页数:4
相关论文
共 29 条
[1]   Redox states of well-defined π-conjugated oligothiophenes functionalized with poly(benzyl ether) dendrons [J].
Apperloo, JJ ;
Janssen, RAJ ;
Malenfant, PRL ;
Groenendaal, L ;
Fréchet, JMJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (29) :7042-7051
[2]  
Camps X, 1999, CHEM-EUR J, V5, P2362, DOI 10.1002/(SICI)1521-3765(19990802)5:8<2362::AID-CHEM2362>3.0.CO
[3]  
2-5
[4]   Fullerene-terminated dendritic multiporphyrin arrays: "Dendrimer effects" on photoinduced charge separation [J].
Choi, MS ;
Aida, T ;
Luo, HX ;
Araki, Y ;
Ito, O .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (34) :4060-4063
[5]   Molecular-wire behaviour in p-phenylenevinylene oligomers [J].
Davis, WB ;
Svec, WA ;
Ratner, MA ;
Wasielewski, MR .
NATURE, 1998, 396 (6706) :60-63
[6]   Electronic communication through π-conjugated wires in covalently linked porphyrin/C60 ensembles [J].
de la Torre, G ;
Giacalone, F ;
Segura, JL ;
Martín, N ;
Guldi, DM .
CHEMISTRY-A EUROPEAN JOURNAL, 2005, 11 (04) :1267-1280
[7]   Non-exponential distance dependence of bridge-mediated electronic coupling [J].
Eng, Mattias P. ;
Albinsson, Bo .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (34) :5626-5629
[8]  
Frechet J. M. J., 2002, DENDRIMERS OTHER DEN
[9]   Studies related to the design and synthesis of a molecular octal counter [J].
Gryko, D ;
Li, JZ ;
Diers, JR ;
Roth, KM ;
Bocian, DF ;
Kuhr, WG ;
Lindsey, JS .
JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (04) :1162-1180
[10]   Supramolecular photovoltaic cells based on composite molecular nanoclusters:: Dendritic porphyrin and C60, porphyrin dimer and C60, and Porphyrin-C60 dyad [J].
Hasobe, T ;
Kamat, PV ;
Absalom, MA ;
Kashiwagi, Y ;
Sly, J ;
Crossley, MJ ;
Hosomizu, K ;
Imahori, H ;
Fukuzumi, S .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (34) :12865-12872