Results 1 to 10 of about 45,338 (207)

Photodissociation of interstellar ArH+ [PDF]

, 2014
Aims. Following the recent detection of 36ArH+ in the Crab nebula spectrum, we have computed the photodissociation rate of ArH+ in order to constrain the physical processes at work in this environment. Methods.
Alekseyev, A. B., Bourlot, J. Le, Roueff, E.   +2 more
core   +4 more sources

Electronic Structures and Photodetachment of TeO₂⁻, TeO₃⁻, and HTeO₄⁻ Anions: A Cryogenic Photoelectron Spectroscopic Study [PDF]

Molecules
Cryogenic anion photoelectron spectroscopy combined with quantum chemical calculations was employed to investigate the electronic structures and photodetachment properties of TeO2−, TeO3−, and HTeO4− anions.
Fan Yang, Xueying Li, Peng Tang, Qixu Zhao, Jian Zhang, Ye Mei, Zhubin Hu, Zhenrong Sun, Yan Yang   +8 more
doaj   +2 more sources

A Thorough Understanding of Methylrhodium(III)–Porphyrin Photophysics: A DFT/TDDFT Study [PDF]

Molecules
Rhodium–porphyrin complexes are characterised by their ability to activate C-H and C-C bonds and, therefore, find applications in synthesis and catalysis. Axial rhodoporphyrin ligands are susceptible to photodissociation under the influence of light. DFT
Piotr Lodowski, Maria Jaworska
doaj   +2 more sources

Direct observation of two-channel photodissociation of carbon monoxide from the hemoglobin subunits [PDF]

Nature Communications
Determining dynamics of bond breaking between carbon monoxide (CO) and heme proteins is essential to understand the interplay between protein function and dynamics, which is one of the fundamental challenges of physical biology.
Sergei V. Lepeshkevich, Igor V. Sazanovich, Marina V. Parkhats, Syargey N. Gilevich, Aliaksei V. Yantsevich, Julia A. Weinstein, Michael Towrie, Boris M. Dzhagarov   +7 more
doaj   +2 more sources

Light-Induced On-Surface Reactions: Bridging Photochemistry and Surface Science. [PDF]

Chempluschem
This minireview examines molecular on‐surface photochemistry as an emerging strategy for synthesizing carbon‐based nanomaterials on substrates. A special emphasis is placed on bridging traditional photochemistry principles with surface science concepts.
Frezza F, Jelínek P, Canola S, Sánchez-Grande A.   +3 more
europepmc   +2 more sources

Photoionization and Photodissociation Rates across a Solar Cycle

The Planetary Science Journal
Unattenuated photoionization and photodissociation rate coefficients are calculated using solar spectral irradiance measurements across a continuous solar cycle spanning 2004–2014. These rates are organized by corresponding daily F _10.7 P indices, where
Luke Moore, Russell Mapaye
doaj   +2 more sources

Photodissociation-driven photoacoustic spectroscopy with UV-LEDs for ozone detection [PDF]

Photoacoustics
This study presents the development and evaluation of a UV-LED based photoacoustic (PA) measurement system for ozone (O3) detection to demonstrate its potential for low-cost and accurate sensing while for the first time addressing the importance of ...
Lukas Escher, Thomas Rück, Simon Jobst, Jonas Pangerl, Rudolf Bierl, Frank-Michael Matysik   +5 more
doaj   +2 more sources

Herschel spectral-mapping of the Helix Nebula (NGC 7293): Extended CO photodissociation and OH+ emission [PDF]

, 2014
The Helix Nebula (NGC 7293) is the closest planetary nebulae. Therefore, it is an ideal template for photochemical studies at small spatial scales in planetary nebulae. We aim to study the spatial distribution of the atomic and the molecular gas, and the
Barlow, M. J., Cernicharo, J., Etxaluze, M., Goicoechea, J. R., Groenewegen, M. A. T., Kerschbaum, F., Lim, T. L., Lique, F., Matsuura, M., Pearson, C., Polehampton, E. T., Royer, P., Swinyard, B. M., Ueta, T., van de Steene, G. C., van Hoof, P. A. M.   +15 more
core   +4 more sources

Real-space observation of the dissociation of a transition metal complex and its concurrent energy redistribution [PDF]

Nature Communications
Mechanistic insights into photodissociation dynamics of transition metal carbonyls, like Fe(CO)5, are fundamental for understanding active catalytic intermediates.
Aviad Schori, Elisa Biasin, Ambar Banerjee, Sébastien Boutet, Philip H. Bucksbaum, Sergio Carbajo, Kelly J. Gaffney, James M. Glownia, Robert Hartsock, Kathryn Ledbetter, Andreas Kaldun, Jason E. Koglin, Kristjan Kunnus, Thomas J. Lane, Mengning Liang, Michael P. Minitti, Jordan T. O’Neal, Robert M. Parrish, Frédéric Poitevin, Jennifer M. Ruddock, Silke Nelson, Brian Stankus, Peter M. Weber, Thomas J. A. Wolf, Michael Odelius, Adi Natan   +25 more
doaj   +2 more sources

Wavelength-dependent photodissociation of iodomethylbutane [PDF]

Scientific Reports
Ultrashort XUV pulses of the Free-Electron-LASer in Hamburg (FLASH) were used to investigate laser-induced fragmentation patterns of the prototypical chiral molecule 1-iodo-2-methyl-butane ( $$\hbox {C}_5$$ $$\hbox {H}_{11}$$ I) in a pump-probe scheme ...
Valerija Music, Felix Allum, Ludger Inhester, Philipp Schmidt, Rebecca Boll, Thomas M. Baumann, Günter Brenner, Mark Brouard, Michael Burt, Philipp V. Demekhin, Simon Dörner, Arno Ehresmann, Andreas Galler, Patrik Grychtol, David Heathcote, Denis Kargin, Mats Larsson, Jason W. L. Lee, Zheng Li, Bastian Manschwetus, Lutz Marder, Robert Mason, Michael Meyer, Huda Otto, Christopher Passow, Rudolf Pietschnig, Daniel Ramm, Daniel Rolles, Kaja Schubert, Lucas Schwob, Richard D. Thomas, Claire Vallance, Igor Vidanovic, Clemens von Korff Schmising, René Wagner, Vitali Zhaunerchyk, Peter Walter, Sadia Bari, Benjamin Erk, Markus Ilchen   +39 more
doaj   +2 more sources