Lecture S. Woutersen
|20 January 2005||FWN-Building 5518.-152, Nijenborgh 4, 9747 AG, Groningen|
|Speaker:||Dr. S. Woutersen|
|Title:||Probing the structure and dynamics of a molecular device by two-dimensional vibrational spectroscopy|
|Date:||Thu Jan 20, 2005|
|Telephone:||+31 50 363 4369|
Rotaxanes are mechanically interlocked molecules consisting of a ring kept around a linear thread by two "stoppers" at the ends. Rotaxane-based devices include light-driven molecular pistons and molecular motors. We use 2D-IR spectroscopy to study rotaxanes composed of a benzylic amide-based ring hydrogen-bonded onto a succinamide-based thread. By determining the coupling between the carbonyl groups in the ring and the thread from the 2D-IR spectrum, the solution conformation of the ring-thread system can be probed. Fluctuations in the length of the hydrogen bonds between ring and thread are observed by measuring time-delayed spectra.
This lecture is part of the MSC mini-symposium New developments in two-dimensional infrared spectroscopy. Please pre-register with Margriet Derix if you wish to attend one or more of its three lectures.
|Last modified:||22 October 2012 2.30 p.m.|