scholarly journals Chirped-pulse millimeter-wave spectroscopy: Spectrum, dynamics, and manipulation of Rydberg–Rydberg transitions

2013 ◽  
Vol 138 (1) ◽  
pp. 014301 ◽  
Author(s):  
Anthony P. Colombo ◽  
Yan Zhou ◽  
Kirill Prozument ◽  
Stephen L. Coy ◽  
Robert W. Field
Keyword(s):  
Millimeter Wave ◽  
Chirped Pulse ◽  
Millimeter Wave Spectroscopy ◽  
Rydberg Transitions

scholarly journals Chirped-Pulse Millimeter-Wave Spectroscopy of Rydberg-Rydberg Transitions

2011 ◽  
Vol 107 (14) ◽  
Author(s):  
Kirill Prozument ◽  
Anthony P. Colombo ◽  
Yan Zhou ◽  
G. Barratt Park ◽  
Vladimir S. Petrović ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Chirped Pulse ◽  
Millimeter Wave Spectroscopy ◽  
Rydberg Transitions

scholarly journals CHIRPED PULSE MILLIMETER WAVE SPECTROSCOPY OF COMPLEX MOLECULES

2020 ◽  
Author(s):  
Stephan Schlemmer ◽  
Frank Lewen ◽  
Katharina von Schoeler ◽  
Nadine Wehres ◽  
Marius Hermanns ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Complex Molecules ◽  
Chirped Pulse ◽  
Millimeter Wave Spectroscopy

scholarly journals CHIRPED PULSE MILLIMETER WAVE SPECTROSCOPY OF COMPLEX MOLECULES

2021 ◽  
Author(s):  
Marius Hermanns ◽  
Stephan Schlemmer ◽  
Frank Lewen ◽  
Bettina Heyne ◽  
Nadine Wehres
Keyword(s):  
Millimeter Wave ◽  
Complex Molecules ◽  
Chirped Pulse ◽  
Millimeter Wave Spectroscopy

scholarly journals Photodissociation transition states characterized by chirped pulse millimeter wave spectroscopy

2019 ◽  
Vol 117 (1) ◽  
pp. 146-151 ◽  
Author(s):  
Kirill Prozument ◽  
Joshua H. Baraban ◽  
P. Bryan Changala ◽  
G. Barratt Park ◽  
Rachel G. Shaver ◽  
...  
Keyword(s):  
Transition State ◽  
Millimeter Wave ◽  
Transition States ◽  
Rotational Transition ◽  
Bimolecular Reaction ◽  
Parent Molecule ◽  
Chirped Pulse ◽  
Millimeter Wave Spectroscopy ◽  
Population Distributions ◽  
Elimination Mechanism

The 193-nm photolysis of CH2CHCN illustrates the capability of chirped-pulse Fourier transform millimeter-wave spectroscopy to characterize transition states. We investigate the HCN, HNC photofragments in highly excited vibrational states using both frequency and intensity information. Measured relative intensities ofJ= 1–0 rotational transition lines yield vibrational-level population distributions (VPD). These VPDs encode the properties of the parent molecule transition state at which the fragment molecule was born. A Poisson distribution formalism, based on the generalized Franck–Condon principle, is proposed as a framework for extracting information about the transition-state structure from the observed VPD. We employ the isotopologue CH2CDCN to disentangle the unimolecular 3-center DCN elimination mechanism from other pathways to HCN. Our experimental results reveal a previously unknown transition state that we tentatively associate with the HCN eliminated via a secondary, bimolecular reaction.

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