| Abstract |
Our group recently showed that the rate constant for the diffusion-limited H + N 2 O reaction in solid parahydrogen (pH 2 ) is inversely related to the N 2 O concentration. a This finding was rationalized by the idea that chemical impurities disrupt the long-range order of the crystal and slow the H-atom quantum diffusion rate.We investigated this finding further by studying the H + CO → HCO reaction in solid pH 2 .To explore how the reaction rate constant depends on the CO concentration, we prepared solid pH 2 matrix samples co-doped with CO and Cl 2 using the Rapid Vapor Deposition technique, b H-atoms are produced in situ using a UV-IR method described previously.c We performed kinetic studies at 1.56(3) and 4.00(2) K with a range of CO concentrations (10 -250 ppm).We observe a similar inverse relationship between the rate constant and the CO concentration.Furthermore, it looks like the rate constant decreases from 1.56(3) to 4.00(2) K.This work is ongoing, and the latest results and analysis will be presented at the meeting. |
| Authors |
Ibrahim Muddasser   , David J. Anderson
|
| Journal Info |
Not listed | 2023 International Symposium on Molecular Spectroscopy
|
| Publication Date |
6/21/2023 |
| ISSN |
Not listed |
Type |
article |
| Open Access |
bronze
|
| DOI |
https://doi.org/10.15278/isms.2023.6926 |
| Keywords |
Hydrogen Bonding (Score: 0.508362)
|
