Synthesis and efficient energy transfer in a three-chromophore energy gradient of regioregular silylene-spaced divinylarene copolymers

被引：35

作者：

Cheng, YJ

Luh, TY ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Inst Polymer Sci & Engn, Taipei 106, Taiwan

来源：

MACROMOLECULES | 2005年 / 38卷 / 11期

关键词：

D O I：

10.1021/ma050140z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Regioregular silylene-spaced copolymers 1 composed of an energy gradient with three different chromophores have been achieved by rhodium-catalyzed hydrosilylation of bis-vinylsilanes 3 and bis-alkynes 4. Monomeric reference compounds 2 were prepared for comparison. The ratio of three chromophores is 1:2:1, corresponding to D-1, D-2, and A chromophores, respectively. The dimethylsilylene (SiMe2) moiety serves as an insulating bridge between chromophores. Upon excitation of the donor chromophore (D-1), only emission from the acceptor (A) was observed. Efficient and sequential energy transfer across three different chromophores along the polymeric backbone may proceed smoothly in these silylene-spaced copolymers.

引用

收藏

页码：4563 / 4568

页数：6

相关论文

共 44 条

[31] TRANSITION-METAL PROMOTED REACTIONS .34. UNIFIED SYNTHESIS OF VINYLSILANES AND SILYLATED BUTADIENES - NICKEL-CATALYZED OLEFINATION AND SILYLOLEFINATION OF DITHIOACETALS [J].

NI, ZJ ;

YANG, PF ;

NG, DKP ;

TZENG, YL ;

LUH, TY .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (25) :9356-9364

[32] Synthesis of polymers with alternating organosilanylene and oligothienylene units and their optical, conducting, and hole-transporting properties [J].

Ohshita, J ;

Takata, A ;

Kai, H ;

Kunai, A ;

Komaguchi, K ;

Shiotani, M ;

Adachi, A ;

Sakamaki, K ;

Okita, K ;

Harima, Y ;

Kunugi, Y ;

Yamashita, K ;

Ishikawa, M .

ORGANOMETALLICS, 2000, 19 (22) :4492-4498

[33]

Ohshita J, 1998, ACTA POLYM, V49, P379, DOI 10.1002/(SICI)1521-4044(199808)49:8<379::AID-APOL379>3.0.CO

[34]

2-Z

[35] CATALYTIC SYNTHESIS OF SILYLENE VINYLENE PRECERAMIC POLYMERS FROM ETHYNYLSILANES [J].

PANG, Y ;

IJADIMAGHSOODI, S ;

BARTON, TJ .

MACROMOLECULES, 1993, 26 (21) :5671-5675

[36] Efficient light harvesting by sequential energy transfer across aggregates in polymers of finite conjugational segments with short aliphatic linkages [J].

Peng, KY ;

Chen, SA ;

Fann, WS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (46) :11388-11397

[37] Cascade energy transfer in a conformationally mobile multichromophoric dendrimer [J].

Serin, JM ;

Brousmiche, DW ;

Fréchet, JMJ .

CHEMICAL COMMUNICATIONS, 2002, (22) :2605-2607

[38] Design of multidye systems for FRET-based applications [J].

Shchepinov, MS ;

Korshun, VA .

NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS, 2001, 20 (4-7) :369-374

[39] Hydrosilylation reactions of bis(dimethylsilyl)acetylenes: A potential route to novel sigma- and pi-conjugated polymers [J].

Son, DY ;

Bucca, D ;

Keller, TM .

TETRAHEDRON LETTERS, 1996, 37 (10) :1579-1582

[40] Triple fluorescence energy transfer in covalently trichromophore-labeled DNA [J].

Tong, AK ;

Jockusch, S ;

Li, ZM ;

Zhu, HR ;

Akins, DL ;

Turro, NJ ;

Ju, JY .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (51) :12923-12924

← 1 2 3 4 5 →