Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session N00: Poster Session II (11:30am-2:30pm CST)
11:30 AM,
Wednesday, March 6, 2024
Room: Hall BC
Sponsoring
Unit:
APS/SPS
Abstract: N00.00358 : Rotational Spectroscopy Studies on Hydrogen Bonding*
Presenter:
Aaron J Reynolds
(University of Minnesota)
Authors:
Aaron J Reynolds
(University of Minnesota)
Kenneth R Leopold
(University of Minnesota)
Wei Lin
(University of Texas Rio Grande Valley)
Karla Salazar
(University of Texas Rio Grande Valley)
often requires the presence of near-neighbors to stabilize the resulting charge separation. We present
the results of microwave spectroscopic investigations of a variety of gas phase acid-base pairs and
consider the degree to which proton transfer takes place. Spectra are presented for the
CF3COOH···N(CH3)3 adduct, and several metrics are used to assess the degree to which the terms
“hydrogen bonded” and “proton-transferred ion pair” provide adequate descriptions. The use of
superacids to promote observable proton transfer is also discussed, and spectra are presented for the
mono- and dihydrates of fluorosulfonic acid, viz., FSO2OH···(H2O)n=1,2. The experimental work is
interpreted in the context of accompanying computational results.
*This work was supported by the National Science Foundation and the Minnesota Supercomputing Institute
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