Format

Send to

Choose Destination
Chemistry. 2003 Oct 6;9(19):4771-80.

Photoresponsive supramolecular systems: self-assembly of azodibenzoic acid linear tapes and cyclic tetramers.

Author information

1
Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montréal Québec H3A 2K6, Canada.

Abstract

A new strategy to effect photoinduced control over molecular self-assembly is reported. This strategy uses the reversible trans-cis photoisomerization of a novel azobenzene system, where the trans- and cis-forms self-assemble into dramatically different higher-order structures. The trans-azobenzene form of this molecule associates into infinite hydrogen-bonded linear tapes, while the cis-azobenzene form undergoes hydrogen-bonded self-assembly into cyclic tetramers. This results in a second level of association, where the cis-hydrogen-bonded supramolecular cycles ultimately form long, rod-like aggregates through stacking interactions.

PMID:
14566885
DOI:
10.1002/chem.200304864

LinkOut - more resources

Full Text Sources

Other Literature Sources

Supplemental Content

Loading ...
Support Center