Polymeric Ladderphanes

被引：71

作者：

Chou, Chih-Ming ^{[1
]}

Lee, Shern-Long ^{[1
]}

Chen, Chih-Hsien ^{[1
]}

Biju, Akkattu Thankappan ^{[1
]}

Wang, Hsian-Wen ^{[1
]}

Wu, Yi-Lin ^{[1
]}

Zhang, Guo-Fu ^{[2
]}

Yang, Kuang-Wei ^{[1
]}

Lim, Tsong-Shin ^{[3
]}

Huang, Min-Jie ^{[1
]}

Tsai, Po-Yu ^{[1
]}

Lin, Kin-Chuan ^{[1
]}

Huang, Shou-Ling ^{[1
]}

Chen, Chun-hsien ^{[1
]}

Luh, Tien-Yau ^{[1
]}

机构：

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

[2] Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China

[3] Tunghai Univ, Dept Phys, Taichung 407, Taiwan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 35期

关键词：

OPENING METATHESIS POLYMERIZATION; SOLID-STATE; EXCIMER FORMATION; MOLECULAR-STRUCTURE; OPTICAL-PROPERTIES; LAYERED COMPOUNDS; PRECISE SYNTHESIS; CHARGE-TRANSPORT; BUILDING-BLOCKS; PORPHYRIN ARRAY;

D O I：

10.1021/ja9035362

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new class of polymers, which have a double-stranded polybinorbornene skeleton with multilayer planar oligoaryl linkers, defined as polymeric ladderphanes, are synthesized. The structures of these ladderphanes are determined by spectroscopic means. Photophysical studies and time-resolved fluorescence spectroscopic investigations reveal that there is a strong interaction between the chromophore linkers. Thus, Sorel band splitting in the absorption spectrum of the polymer with porphyrin linker (12e), significant fluorescence quenching with oligoaryl linkers (12b-d), and excimer emission with a terphenylene-diethynylene linker (12a) are characteristic photophysical properties of these polymers. Scanning tunneling microscopy shows that polymers 12b and d exhibit a ladder-like morphology and form a supramolecular assembly leading to a two-dimensional ordered array on a highly oriented pyrolytic graphite surface.

引用

页码：12579 / 12585

页数：7

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