"Helter-Skelter-Like" Perylene Polyisocyanopeptides

被引:62
作者
Schwartz, Erik [2 ]
Palermo, Vincenzo [3 ]
Finlayson, Chris E. [1 ]
Huang, Ya-Shih [1 ]
Otten, Matthijs B. L. [2 ]
Liscio, Andrea [3 ]
Trapani, Sara [4 ]
Gonzalez-Valls, Irene [2 ]
Brocorens, Patrick [4 ]
Cornelissen, Jeroen J. L. M. [2 ]
Peneva, Kalina [5 ]
Muellen, Klaus [5 ]
Spano, Frank C. [6 ]
Yartsev, Arkady [7 ]
Westenhoff, Sebastian [1 ]
Friend, Richard H. [1 ]
Beljonne, David [4 ]
Nolte, Roeland J. M. [2 ]
Samori, Paolo [3 ,8 ,9 ]
Rowan, Alan E. [2 ]
机构
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England
[2] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 ED Nijmegen, Netherlands
[3] CNR, Inst Sintesi Organ & Fotoreattivita, I-40129 Bologna, Italy
[4] Univ Mons, B-7000 Mons, Belgium
[5] Max Planck Inst Polymer Res, D-55124 Mainz, Germany
[6] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA
[7] Lund Univ, S-22100 Lund, Sweden
[8] Univ Strasbourg, Nanochem Lab, ISIS, F-67000 Strasbourg, France
[9] CNRS, UMR 7006, F-67000 Strasbourg, France
基金
美国国家科学基金会;
关键词
electron transport; perylene diimides; polyisocyanides; polymers; THIN-FILM TRANSISTORS; FORCE MICROSCOPY; CHARGE-TRANSPORT; BUILDING-BLOCKS; BISIMIDE DYES; SURFACTANT COMPLEXES; ENERGY-TRANSFER; POLYMERS; POLYMERIZATION; SPECTROSCOPY;
D O I
10.1002/chem.200801746
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report on a combined experimental and computational investigation on the synthesis and thorough characterization of the structure of perylene-functionalized polyisocyanides. Spectroscopic analyses and extensive molecular dynamics studies revealed a well defined 4, helix in which the perylene molecules form four "helter skelter-like" overlapping pathways along which excitons and electrons can rapidly migrate. The well-defined polymer scaffold stabilized by hydrogen bonding, to which the chromophores are attached, accounts for the precise architectural definition, and molecular stiffness observed for these molecules. Molecular-dynamics studies showed that the chirality present in these polymers is expressed in the formation of stable right-handed helices. The formation of chiral supramolecular structures is further supported by the measured and calculated bisignated Cotton effect. The structural definition of the chromophores aligned in one direction along the backbone is highlighted by the extremely efficient exciton migration rates and charge densities measured with Transient Absorption Spectroscopy.
引用
收藏
页码:2536 / 2547
页数:12
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