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Title: Direct measurements of DOCO isomers in the kinetics of OD + CO

Journal Article · · Science Advances

Quantitative and mechanistically detailed kinetics of the reaction of hydroxyl radical (OH) with carbon monoxide (CO) have been a longstanding goal of contemporary chemical kinetics. This fundamental prototype reaction plays an important role in atmospheric and combustion chemistry, motivating studies for accurate determination of the reaction rate coefficient and its pressure and temperature dependence at thermal reaction conditions. This intricate dependence can be traced directly to details of the underlying dynamics (formation, isomerization, and dissociation) involving the reactive intermediates cis- and trans-HOCO, which can only be observed transiently. Using time-resolved frequency comb spectroscopy, comprehensive mechanistic elucidation of the kinetics of the isotopic analog deuteroxyl radical (OD) with CO has been realized. By monitoring the concentrations of reactants, intermediates, and products in real time, the branching and isomerization kinetics and absolute yields of all species in the OD + CO reaction are quantified as a function of pressure and collision partner.

Research Organization:
Univ. of Florida, Gainesville, FL (United States); California Institute of Technology (CalTech), Pasadena, CA (United States); Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF)
Grant/Contract Number:
FG02-07ER15884; FA9550-15-1-0111 P00002; PHY-1734006; CHE-1413712
OSTI ID:
1499948
Journal Information:
Science Advances, Vol. 4, Issue 1; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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Cited By (14)

Phase-stabilized 100 mW frequency comb near 10 μm journal June 2018
Time-resolved mid-infrared dual-comb spectroscopy journal November 2019
Fast molecular fingerprinting with a coherent, rapidly tunable dual-comb spectrometer near 3 μm journal January 2019
High-resolution infrared spectroscopy of jet cooled trans -deuteroxycarbonyl ( trans -DOCO) radical journal May 2019
Spectral analyses of trans - and cis -DOCO transients via comb spectroscopy journal June 2018
Direct observation of bimolecular reactions of ultracold KRb molecules journal November 2019
Comb-resolved spectroscopy with immersion grating in long-wave infrared journal January 2019
Roadmap on STIRAP applications text January 2019
Roadmap on STIRAP applications other January 2019
Roadmap on STIRAP applications journal September 2019
Roadmap on STIRAP applications text January 2019
Spectral analyses of trans- and cis-DOCO transients via comb spectroscopy text January 2018
Comb-resolved spectroscopy with immersion grating in long-wave infrared text January 2018
Roadmap on STIRAP applications text January 2019

Figures / Tables (4)


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