Results 11 to 20 of about 40,404 (274)

Conformational-Dependent Photodissociation of Glycolic Acid in an Argon Matrix

open access: yesPhotochem, 2023
Ultraviolet-induced photodissociation and photo-isomerization of the three most stable conformers (SSC, GAC, and AAT) of glycolic acid are investigated in a low-temperature solid argon matrix using FTIR spectroscopy and employing laser radiation with ...
Jussi Ahokas   +6 more
doaj   +1 more source

Photodissociation of water molecule at short photon wavelengths: Dynamical studies

open access: yesFrontiers in Physics, 2023
In our last study [J. Phys. B At. Mol. Opt. Phys. 54, 125,102 (2021).], we reported the ab initio calculation of the full-dimensional potential energy surfaces of water molecule including 9 A’ and 9 A” states in Cs symmetry.
Yigeng Peng   +10 more
doaj   +1 more source

Real-Time Measurement of Photodissociation with a Static Modulated Fourier Transform Spectrometer

open access: yesApplied Sciences, 2022
A static modulated Fourier transform spectrometer composed of a modified Sagnac interferometer was implemented for real-time remote sensing of the spectral property changes in a solid dye.
Ju Yong Cho   +3 more
doaj   +1 more source

Photoinduced bond oscillations in ironpentacarbonyl give delayed synchronous bursts of carbonmonoxide release

open access: yesNature Communications, 2022
The photodissociation of transition metal carbonyls is involved in catalysis and synthetic processes. Here the authors, using semi-classical excited state molecular dynamics, observe details of the early stage dynamics in the photodissociation of Fe(CO)5,
Ambar Banerjee   +6 more
doaj   +1 more source

Contrasting Mechanisms for Photodissociation of Methyl Halides Adsorbed on Thin Films of C$_6$H$_6$ and C$_6$F$_6$ [PDF]

open access: yeshttps://pubs.rsc.org/en/content/articlelanding/2021/cp/d0cp05844k, 2021
The mechanisms for photodissociation of methyl halides (CH$_3$X, X= Cl, Br, I) have been studied for these molecules when adsorbed on thin films of C$_6$H$_6$ or C$_6$F$_6$ on copper single crystals, using time-of-flight spectroscopy with 248nm and 193nm light.
arxiv   +1 more source

A Theoretical Study of Temperature-dependent Photodissociation Cross Sections and Rates for O2

open access: yesThe Astrophysical Journal Supplement Series, 2023
The photodissociation of O _2 is thought to play a vital role in blocking UV radiation in the Earth’s atmosphere and likely has great importance in characterizing exoplanetary atmospheres.
Zhi Qin   +3 more
doaj   +1 more source

The Role of Norrish Type-I Chemistry in Photoactive Drugs: An ab initio Study of a Cyclopropenone-Enediyne Drug Precursor

open access: yesFrontiers in Chemistry, 2020
We present a contemporary mechanistic description of the light-driven conversion of cyclopropenone containing enediyne (CPE) precusors to ring-opened species amenable to further Bergman cyclization and formation of stable biradical species that have been
Spencer J. Léger   +4 more
doaj   +1 more source

Data for Photodissociation of Some Small Molecular Ions Relevant for Astrochemistry and Laboratory Investigation

open access: yesData, 2022
The calculated photodissociation data of some small molecular ions have been reported. The cross-sections and spectral rate coefficients data have been studied using a quantum mechanical method. The plasma parameters, i.e., conditions, cover temperatures
Vladimir A. Srećković   +5 more
doaj   +1 more source

Iron monoxide photodissociation [PDF]

open access: yesThe Journal of Chemical Physics, 2005
The photodissociation of Fe56O was studied by means of the velocity map imaging technique. A molecular beam of iron atoms and iron monoxide molecules was created using an electrical discharge with an iron electrode in a supersonic expansion of molecular oxygen.
Chestakov, D.A.   +2 more
openaire   +4 more sources

The Catalyzed Photodissociation of Water [PDF]

open access: yesCatalysis Reviews, 1984
Abstract Chemical interactions between molecules in excited electronic, vibrational, or rotational states and surfaces is a new field of catalytic science. Until recently, catalysis of chemical reactions has only been considered for molecules in their thermodynamic ground states.
Somorjai, G.A.   +2 more
openaire   +2 more sources

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