Results 71 to 80 of about 13,910 (212)

A Comprehensive Analysis of Optical Emissions, Production of NOx, HOx, and Other Chemical Species by Lightning

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 18, 28 September 2025.
Abstract We analyze lightning optical emissions and their production of different chemical species with particular emphasis on NOx ${\text{NO}}_{x}$ and HOx ${\text{HO}}_{x}$. We calculate synthetic lightning spectra with inputs from an electrodynamical model of hot air lightning plasmas.
Francisco J. Pérez‐Invernón   +8 more
wiley   +1 more source

Advancing Light‐Triggered Alkyd Paint Curing: (Cp)FeII(naphthalene)](PF6) Catalysts with Enhanced Photosensitivity and Increased Performance in Pigmented Alkyd Paints

open access: yesChemistryEurope, Volume 3, Issue 5, September 18, 2025.
[(Cp)FeII(naphthalene)](PF6) catalysts are reported with improved curing efficiency of alkyd paints compared to [(Cp)FeII(arene)](PF6), particularly in dark‐pigmented formulations. Their improved photosensitivity enables faster drying at lower concentrations, presenting a promising alternative to conventional industrial driers under regulatory pressure.
Jens Tolboom   +5 more
wiley   +1 more source

Near-IR photodissociation of peroxy acetyl nitrate [PDF]

open access: yesAtmospheric Chemistry and Physics, 2005
Measurements of the C-H overtone transition strengths combined with estimates of the photodissociation cross sections for these transitions suggest that near-IR photodissociation of peroxy acetyl nitrate (PAN) is less significant (Jnear-IR≈3x10-8s ...
S. A. Nizkorodov   +4 more
doaj  

Mechanistic Study of the Light‐Initiated Generation of Free Diazoalkanes: Towards Photo‐Orthogonal Synthesis

open access: yesChemistryEurope, Volume 3, Issue 5, September 18, 2025.
A combined computational and experimental study elucidates the mechanism of the light‐induced formation of free diazoalkanes in detail. Starting from deprotonated tosylhydrazone as the light‐harvesting species, it undergoes bond dissociation from a charge transfer state.
Ferdinand L. Pointner   +12 more
wiley   +1 more source

Simulating cold atomic hydrogen production in linear radiofrequency ion traps

open access: yesNew Journal of Physics
We simulated the motion of ${\mathrm{BaH^{+}}}$ molecular ions which are sympathetically cooled by laser-cooled ${\mathrm{Ba^{+}}}$ ions in linear quadrupole and octupole radiofrequency (RF) ion traps.
Nikita Poljakov   +2 more
doaj   +1 more source

Translational Spectroscopy: Cl2 Photodissociation [PDF]

open access: bronze, 1969
G. E. Busch   +3 more
openalex   +1 more source

Photofragment Translational Spectroscopy

open access: yesCHIMIA, 1994
Photofragment translational spectroscopy (PTS) is a technique for studying the mechanisms and the dynamics of photodissociation processes under collision-free conditions.
Peter Felder
doaj   +2 more sources

Photodissociation Regions [PDF]

open access: yes, 2011
Mark G. Wolfire, Michael J. Kaufman
openaire   +3 more sources

Photodissociation dynamics of HCOOH(Ã)

open access: yesChemical Physics Letters, 1988
The technique of Doppler-resolved, polarised LIF spectroscopy has been employed in a study of the energy and momenta disposal in the OH fragments generated via photodissociation of HCOOH (A 1A″) at 225 nm. The majority of the excess energy resides in fragment translation (≈ 78%) and internal excitation of the HCO fragment (≈ 12%).
Brouard, M, Omahony, J
openaire   +3 more sources

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