| Literature DB >> 16150716 |
Olaf F A Larsen1, Pavol Bodis, Wybren Jan Buma, Jeffrey S Hannam, David A Leigh, Sander Woutersen.
Abstract
Femtosecond 2D-IR spectroscopy has been used to study the structure of a [2]rotaxane composed of a benzylic amide macrocycle that is mechanically interlocked onto a succinamide-based thread. Both the macrocycle and the thread contain carbonyl groups, and by determining the coupling between the stretching modes of these groups from the cross-peaks in the 2D-IR spectrum, the structure of the macrocycle-thread system has been probed. Our results demonstrate that 2D-IR spectroscopy can be used to observe structural changes in molecular devices on a picosecond time scale.Entities:
Mesh:
Substances:
Year: 2005 PMID: 16150716 PMCID: PMC1198997 DOI: 10.1073/pnas.0505313102
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205