Transient two-dimensional vibrational spectroscopy of an operating molecular machine.

ABSTRACT: Synthetic molecular machines are promising building blocks for future nanoscopic devices. However, the details of their mechanical behaviour are in many cases still largely unknown. A deeper understanding of mechanics at the molecular level is essential for the design and construction of complex nanodevices. Here, we show that transient two-dimensional infrared (T2DIR) spectroscopy makes it possible to monitor the conformational changes of a translational molecular machine during its operation. Translation of a macrocyclic ring from one station to another on a molecular thread is initiated by a UV pulse. The arrival of the shuttling macrocycle at the final station is visible from a newly appearing cross peak between these two moieties. To eliminate spectral congestion in the T2DIR spectra,

SUBMITTER: Panman MR 

PROVIDER: S-EPMC5738383 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature