Journal
THIN SOLID FILMS
Volume 516, Issue 9, Pages 2401-2406Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2007.04.110
Keywords
bilayer structure; fullerenes; supramolecular assemblies; polymorphism
Ask authors/readers for more resources
Fine-tuning of the supramolecularly organized nanometer scale architectures of fallerene derivatives, fulleropyrrolidines substituted with a mono-, di-, or tri(n-hexadecyloxy)phenyl group is described. These synthetic fullerene derivatives possess one- (1), two- (2), or three- (3) long alkyl chains. The correlation between the number of alkyl chain multiplicity and the self-organized bilayer structures as the fundamental subunit as well as the superstructures formed in different solvents were investigated using microscopic and spectroscopic techniques. The fullerene derivatives studied formed interdigitated lamellar bilayer structures whose d spacing values, estimated by X-ray diffraction patterns, are 2.63 nm for 1, 3.50 nm for 2, and 4.28 nm for 3, respectively. There are the two differing intermolecular forces present due to C(60) (sp(2)-carbons) or alkyl chains (sp(3)-carbons). Fullerene moieties always exhibit strong pi-pi interactions, while van der Waals interactions between alkyl chains can be altered by variation of their multiplicity. Substitution of three alkyl chains at the fullerene moiety (3) was the most effective method for stimulating polymorphism in its derivatives in different solvents. (C) 2007 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available