Molecular bilayer-based superstructures of a fullerene-carrying ammonium amphiphile: Structure and electrochemistry

Citation
N. Nakashima et al., Molecular bilayer-based superstructures of a fullerene-carrying ammonium amphiphile: Structure and electrochemistry, CHEM-EUR J, 7(8), 2001, pp. 1766-1772
Citations number
44
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY-A EUROPEAN JOURNAL
ISSN journal
0947-6539 → ACNP
Volume
7
Issue
8
Year of publication
2001
Pages
1766 - 1772
Database
ISI
SICI code
0947-6539(20010417)7:8<1766:MBSOAF>2.0.ZU;2-A
Abstract
The synthesis of a water-soluble C-60-carrying single-chain ammonium amphip hile, 10-(N-methyl-2-fulleropyrrolidyl)decyltrimethylammonium bromide (1) a s welt as the characterization of aqueous solutions and cast films of 1 are described, X-ray diffraction study suggests that cast films of 1 form a mu ltilayer structure based on biomembrane-like molecular bilayers Electron mi croscopy has revealed that 1 produces both fibrous and disk-like aggregates with 10-12 nm of thickness through self-organization of I in aqueous solut ion. Differential scanning calorimetry, dynamic light scattering, FTIR, and UV-visible absorption studies were: also carried out to characterize aqueo us solutions and cast films of I. Electrochemistry for an aqueous solution and for cast films of just I and 1 incorporated in lipid films on electrode s was conducted. It was found that films of just 1 and of 1/lipid cast on e lectrodes showed electron transfer reactions leading to the generation of t he fullerene dianion or trianion. In contrast, electrochemistry of aqueous solution of I at a bare electrode gives a cathodic current near -0.5 to -0. 6 V against SCE; however, an anodic current for the solution did not appear .