ArticleJournal of the American Chemical Society2024
Unraveling the Ultrafast Photochemical Dynamics of Nitrobenzene in Aqueous Solution.
Article in Journal of the American Chemical Society, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 22 citations in OpenAlex.
- Lighting up Polynitrodopamine: from Electropolymerization to Photopatterning of Ultrathin Films.ACS applied materials & interfaces · 2026Article
- Photoelectron imaging of substituted benzenes in aqueous aerosol droplets.Physical chemistry chemical physics : PCCP · 2026Article
- New Insights into Intersystem Crossing in Substituted Aromatics: Singlet-Triplet Conversion in Carbonyl-Substituted Anthracenes.The journal of physical chemistry. B · 2026Article
- Dynamic Equilibrium between the Fluorescent State of Tryptophan and Its Cation-Electron Ion Pair Governs Triplet State Population.Journal of the American Chemical Society · 2025Article
- The femtochemistry of nitrobenzene following excitation at 240 nm.Communications chemistry · 2025Article
- How a toxic pollutant avoids photodegradation: Relaxation pathways of UV-excited 2,4-dinitrophenol in aqueous solution.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Efficient Ground-State Recovery of UV-PhotoexcitedJournal of the American Chemical Society · 2024Article
- Competing Nonadiabatic Relaxation Pathways for Near-UV ExcitedThe journal of physical chemistry letters · 2024Article
- Perspective on Theoretical and Experimental Advances in Atmospheric Photochemistry.The journal of physical chemistry. A · 2024Review
- Femtosecond to Microsecond Observation of Photochemical Pathways in Nitroaromatic Phototriggers Using Transient Absorption Spectroscopy.The journal of physical chemistry. A · 2024Article
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Authors and funding
13 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitroaromatic compounds are major constituents of the brown carbon aerosol particles in the troposphere that absorb near-ultraviolet (UV) and visible solar radiation and have a profound effect on the Earth's climate. The primary sources of brown carbon include biomass burning, forest fires, and residential burning of biofuels, and an important secondary source is photochemistry in aqueous cloud and fog droplets. Nitrobenzene is the smallest nitroaromatic molecule and a model for the photochemical behavior of larger nitroaromatic compounds. Despite the obvious importance of its droplet photochemistry to the atmospheric environment, there have not been any detailed studies of the ultrafast photochemical dynamics of nitrobenzene in aqueous solution. Here, we combine femtosecond transient absorption spectroscopy, time-resolved infrared spectroscopy, and quantum chemistry calculations to investigate the primary steps following the near-UV (λ ≥ 340 nm) photoexcitation of aqueous nitrobenzene. To understand the role of the surrounding water molecules in the photochemical dynamics of nitrobenzene, we compare the results of these investigations with analogous measurements in solutions of methanol, acetonitrile, and cyclohexane. We find that vibrational energy transfer to the aqueous environment quenches internal excitation, and therefore, unlike the gas phase, we do not observe any evidence for formation of photoproducts on timescales up to 500 ns. We also find that hydrogen bonding between nitrobenzene and surrounding water molecules slows the S
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