Real-time dissociation dynamics of the Ne Br van der Waals complex
Journal of Chemical Physics, ISSN: 0021-9606, Vol: 133, Issue: 1, Page: 014305
2010
- 27Citations
- 14Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
We have characterized the vibrational predissociation (VP) of the Ne Br van der Waals complex using time- and frequency-resolved pump-probe spectroscopy. After exciting Br within the complex to a vibrational level 16≤ ν'≤23 in the B state, we follow the flow of halogen vibrational energy to the van der Waals modes in real time by recording the time-dependent behavior of Ne Br (ν'), the NeBr (ν'-m) intermediates, and the Br (ν'-n) products. For Ne Br (ν'=16-18), the only intermediate observed is NeBr (ν'-1), and the majority of the final product is Br (ν'-2), indicating the dissociation happens via two sequential direct VP steps. We fit the time-dependent behavior of these species to a sequential mechanism and extracted time constants for each step. For higher ν'levels, the results show that the dissociation occurs via multiple pathways. Product Br from levels lower than (ν'-2) becomes much more important, with products as low as (ν'-5) being observed. For ν'=21, we observe both NeBr (ν'-1) and (ν'-2) intermediates. The intermediates have significantly different kinetics, with the decay rate of the (ν'-1) transient being nearly twice that of the (ν'-2) transient. Similarly, both Br (ν'-2) and (ν'-3) are formed in almost equal amounts, but the (ν'-2) product formation rate is faster than the (ν'-3) rate. The broad vibrational product state distributions and multiple dissociation pathways indicate that intramolecular vibrational energy redistribution becomes increasingly important for ν'>19. We also report vibrational product state distributions for direct excitation to NeBr 16≤ ν'≤23. For NeBr, the dominant product channel is Br (ν'-1) for all initial ν'studied, consistent with this complex dissociating primarily via direct VP. © 2010 American Institute of Physics.
Bibliographic Details
AIP Publishing
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know