Synthesis of supramolecular polymers by ionic self-assembly of oppositely charged dyes

被引:62
作者
Guan, Y
Yu, SH
Antonietti, M
Böttcher, C
Faul, CFJ
机构
[1] Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany
[2] Free Univ Berlin, Forschungszentrum Eletronenmikroskopie, D-14195 Berlin, Germany
关键词
dyes/pigments; helical structures; polymerization; self-assembly; supramolecular chemistry;
D O I
10.1002/chem.200400778
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new type of supramolecular polymer was prepared by ionic self-assembly (ISA) from two oppositely charged dyes; a perylenediimide and a copper-phthalocyanine derivative. Coulomb coupling stabilizes the whole structure, and a combination of charge-transfer interactions and discotic stacking facilitates the exclusive formation of one-dimensional polymeric chains. The supramolecular dye-polymers have a large association constant (2.4 x 10(7) Lmol(-1)), high molecular weight, and high mechanical stability. The use of cryo-transmission electron microscopy (cryo-TEM) confirmed the existence of extended fibers of width 2.4 nm. Further image analysis revealed slight undulation and faint segmentation of the fibers, and density maxima were observed at a regular interval of 3.6 nm along the fiber axis. The fiber-like structure (and aggregate of fibers) is also found in the solid state, as shown by the results of mineralization contrasting experiments, atomic force microscopy (AFM), and X-ray analyses. A structural model is proposed, in which the structural subunits, arranged in a side-by-side conformation, form a stacked structure.
引用
收藏
页码:1305 / 1311
页数:7
相关论文
共 54 条
[1]   Spatially-resolving nanoscopic structure and excitonic-charge-transfer quenching in molecular semiconductor heterojunctions [J].
Adams, DM ;
Kerimo, J ;
Olson, EJC ;
Zaban, A ;
Gregg, BA ;
Barbara, PF .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (44) :10608-10619
[2]  
[Anonymous], 2002, ANGEW CHEM, V114, P3980
[3]  
[Anonymous], 2002, ANGEW CHEM, V114, P3016, DOI DOI 10.1002/1521-3757(20020816)114:16<3016::AID-ANGE3016>3.0.CO
[4]  
2-5
[5]   Stacked bilayer helices: A new structural organization of amphiphilic molecules [J].
Boettcher, C ;
Stark, H ;
vanHeel, M .
ULTRAMICROSCOPY, 1996, 62 (1-2) :133-139
[6]  
BOMM T, 2002, J AM CHEM SOC, V124, P9582
[8]   Supramolecular polymers [J].
Brunsveld, L ;
Folmer, BJB ;
Meijer, EW ;
Sijbesma, RP .
CHEMICAL REVIEWS, 2001, 101 (12) :4071-4097
[9]   Organized nanostructured complexes of inorganic clusters and surfactants that exhibit thermal solid-state transformations [J].
Camerel, F ;
Antonietti, M ;
Faul, CFJ .
CHEMISTRY-A EUROPEAN JOURNAL, 2003, 9 (10) :2160-2166
[10]  
Demus D., 1998, HDB LIQUID CRYSTAL B, V2B