Two-Dimensional Chirped-Pulse Fourier Transform Microwave Spectroscopy: Introduction to Two-Dimensional Broadband Techniques

Details Two-Dimensional Chirped-Pulse Fourier Transform Microwave Spectroscopy: Introduction to Two-Dimensional Broadband Techniques Two-Dimensional Chirped-Pulse Fourier Transform Microwave Spectroscopy: Introduction to Two-Dimensional Broadband Techniques

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..confetc08s&link_type=abstract

"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec

Physics

Microwave (Rotational)

Scientific paper

There is a gap in the electromagnetic spectrum where the microwave region is located when considering broadband two-dimensional spectroscopy. We introduce two-dimensional chirped-pulse Fourier transform microwave (CP-FTMW) spectroscopy as a way to directly identify coherences between coupled rotational levels. The theory and application of these experiments is a direct extension of traditional two-dimensional NMR techniques. Several different pulse sequences will be presented that allow for selective (narrowband) and non-selective (broadband) excitation. Data acquisition with broadband (10 GHz) detection enables several coupled transitions to be monitored simultaneously. Due to the extremely large amount of data acquired in each experiment, a new way of processing data is explained that allows a more straightforward analysis of the spectra. An autocorrelation study of 1-chloro-1-fluoroethylene is presented as a simple example of this application in the microwave region of the spectrum.

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