Results 91 to 100 of about 40,404 (274)

Photodissociation spectroscopy via a rovibrational resonance in intense UV pulses

open access: yesPhysical Review Research, 2022
Photodissociation dynamics via a rovibrational resonance in intense UV pulses is investigated theoretically, using a showcase CH^{+} molecule promoted to the C^{1}Σ^{+} valence excited electronic state with a potential barrier, thus giving access to ...
Yan Rong Liu   +5 more
doaj   +1 more source

Photodissociation of the {HeH$^+$} molecular ion

open access: yes, 2009
The photodissociation cross section of the molecular ion HeH$^+$ was calculated within the Born-Oppenheimer approximation for a parallel, a perpendicular, and an isotropic orientation of the molecular axis with respect to the field, considering also ...
Dumitriu, Irina, Saenz, Alejandro
core   +1 more source

PHOTODISSOCIATION OF CN

open access: yesThe Astrophysical Journal, 2013
CN rovibrational photodissociation cross sections have been computed using ab initio derived potential curves and dipole transition moment functions adjusted to match asymptotic experimental constraints where available. Here, we report results for the electronic transitions {sup 2}Σ{sup +}(4) ← X {sup 2}Σ{sup +}, {sup 2}Σ{sup +}(5) ← X {sup 2}Σ{sup +},
W. el-Qadi, Phillip C. Stancil
openaire   +2 more sources

Integrating Flow Chemistry With Electrospray Ionization Mass Spectrometry

open access: yesChemistry–Methods, EarlyView.
The direct integration of flow chemistry with electrospray ionization‐mass spectrometry is emerging as a method for real‐time monitoring of reaction mixtures under well‐defined conditions. As shown in selected examples, this interface facilitates the characterization of reaction intermediates, enables the tracking of reaction dynamics under changing ...
Quentin Duez
wiley   +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

CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD

open access: yesOdessa Astronomical Publications, 2017
In order to calculate the molecular concentrations in the interstellar cloud and to obtain heir spatial distribution we have made a computational code to solve the set of equations for chemical equilibrium and equations of charge and atom balance.
I. Shmeld, J. Freimanis, N. G. Bochkarev
doaj   +1 more source

Site-Specific Photochemical Reaction for Improved C=C Location Analysis of Unsaturated Lipids by Ultraviolet Photodissociation

open access: yesResearch, 2022
Unraveling the complexity of the lipidome requires the development of novel approaches to facilitate structural identification and characterization of lipid species with isomer-level discrimination. Ultraviolet photodissociation tandem mass spectrometry (
Hai-Fang Li   +5 more
doaj   +1 more source

Photocleavable Porphyrin Derivatives for Quantum Optics

open access: yesHelvetica Chimica Acta, Accepted Article.
Optical control of molecular beams is intriguing as it promises to become a new tool for mass spectrometry and quantum interferometry, where a single or two photons deterministically remove a tailored tag from a larger molecular structure, e.g., a polypeptide.
Olga Rybakova   +9 more
wiley   +1 more source

Photodissociation dynamics of nitric oxide from roussin’s red ester probed by time-resolved infrared spectroscopy [PDF]

open access: yesEPJ Web of Conferences, 2019
To explore nitric oxide (NO)-donating capability of Roussin’s red ester [Fe2(μ-RS)2(NO)4] (RRE), photodissociation of NO from RRE and its subsequent reaction dynamics were probed by monitoring the N–O stretching mode after excitation with a 400-nm photon.
Yoon Hojeong   +3 more
doaj   +1 more source

The photodissociation of CO in circumstellar envelopes

open access: yes, 2017
Carbon monoxide is the most abundant molecule after H$_2$ and is important for chemistry in circumstellar envelopes around late-type stars. The size of the envelope is important when modelling low-J transition lines and deriving mass-loss rates from such
Groenewegen, M. A. T.
core   +1 more source

Home - About - Disclaimer - Privacy