Zobrazeno 1 - 10 of 63 pro vyhledávání: '"Askar Fahr"'
1
UV/Vis+ photochemistry database: Structure, content and applications
Autor: Gerd K. Hartmann, Askar Fahr, B.N. Rajasekhar, Ann Carine Vandaele, David J. Lary, John J. Orlando, Paulo Limão-Vieira, Robert Locht, Andreas Noelle, Kristopher McNeill, Farid Salama, Javier Martin-Torres, Richard P. Wayne, Yuan-Pern Lee, Chenyi Yuan
Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Journal of Quantitative Spectroscopy and Radiative Transfer, 253
Journal of quantitative spectroscopy & radiative transfer
The “science-softCon UV/Vis+ Photochemistry Database” (www.photochemistry.org) is a large and comprehensive collection of EUV-VUV-UV–Vis-NIR spectral data and other photochemical information assembled from published peer-reviewed papers. The da
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec1587fba97bd6f5d031e5839d863679
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2
Synchrotron Photoionization Mass Spectrometry Measurements of Kinetics and Product Formation in the Allyl Radical (H2CCHCH2) Self-Reaction
Autor: Askar Fahr, Fabien Goulay, Giovanni Meloni, David L. Osborn, Craig A. Taatjes, Talitha M. Selby, Stephen R. Leone
Publikováno v: The Journal of Physical Chemistry A. 112:9366-9373
Product channels for the self-reaction of the resonance-stabilized allyl radical, C3H5 + C3H5, have been studied with isomeric specificity at temperatures from 300-600 K and pressures from 1-6 Torr using time-resolved multiplexed photoionization mass
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d03142983382d3852738b90199a187f3
https://doi.org/10.1021/jp802330k
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3
Hydrogen Migration and Vinylidene Pathway for Formation of Methane in the 193 nm Photodissociation of Propene: CH3CHCH2 and CD3CDCD2
Autor: Joshua B. Halpern, Askar Fahr, Allan H. Laufer, Yi-Lei Zhao
Publikováno v: The Journal of Physical Chemistry A. 111:8330-8335
Photodissociation channels and the final product yields from the 193 nm photolysis of propene-h6 (CH(2)=CHCH(3)) and propene-d6 (CD(2)=CDCD(3)) have been investigated, employing gas chromatography, mass spectroscopy, and flame ionization (GC/MS/FID)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4f6339f45d1876320b8318c7ba07bbb
https://doi.org/10.1021/jp072475j
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4
Pressure and Temperature Dependence of the Reaction of Vinyl Radical with Ethylene
Autor: Joshua B. Halpern, C. Franklin Goldsmith, Huzeifa Ismail, Craig A. Taatjes, Askar Fahr, Pui-Teng Howe, Yuri Georgievskii, Leonard E. Jusinski, Paul R. Abel, William H. Green
Publikováno v: The Journal of Physical Chemistry A. 111:6843-6851
This work reports measurements of absolute rate coefficients and Rice-Ramsperger-Kassel-Marcus (RRKM) master equation simulations of the C2H3+C2H4 reaction. Direct kinetic studies were performed over a temperature range of 300-700 K and pressures of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d4543f8faccdb9cda0a76f7e0faf899
https://doi.org/10.1021/jp071041l
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5
UV-Absorption Spectra of the Radical Transients Generated from the 193-nm Photolysis of Allene, Propyne, and 2-Butyne
Autor: Askar Fahr, Allan H. Laufer
Publikováno v: The Journal of Physical Chemistry A. 109:2534-2539
The 193-nm photochemistry of allene (H2C=C=CH2), propyne (H3C-C[triple bond]CH), and 2-butyne (H3C-C[triple bond]C-CH3) has been examined, and the UV spectral region between 220 and 350 nm has been surveyed for UV-absorption detection of transient sp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::388912fe6e7af84fa20e7575b32f0525
https://doi.org/10.1021/jp0406058
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7
Kinetics of the reaction of vinyl radicals with NO: Ab initio theory, master equation predictions, and laser absorption measurements
Autor: Stephen J. Klippenstein, Frank Striebel, Craig A. Taatjes, Leonard E. Jusinski, Askar Fahr, Joshua B. Halpern
Publikováno v: Phys. Chem. Chem. Phys.. 6:2216-2223
The pulsed laser photolysis/cw laser absorption technique is used to investigate the reaction of vinyl (C2H3) with NO in the temperature range from 295 to 700 K and pressures from 10 to 320 Torr (1.33 to 42.6 kPa). Vinyl radicals are generated by pho
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64429bb6739bce1fd263c980fdcf9435
https://doi.org/10.1039/b401163e
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8
Pressure and Temperature Effects on Product Channels of the Propargyl (HC⋮CCH2) Combination Reaction and the Formation of the 'First Ring'
Autor: Pui-Teng Howe†, Askar Fahr
Publikováno v: The Journal of Physical Chemistry A. 107:9603-9610
The propargyl (HC⋮CCH2) radical is among the critical intermediates in hydrocarbon reaction systems pertinent to both the high temperatures of combustion systems and the low temperatures of planeta...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::023ad74e6067a1af627901c44a34b157
https://doi.org/10.1021/jp0307497
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9
Ultraviolet absorption spectrum and cross-sections of ethynyl (C2H) radicals
Autor: Askar Fahr
Publikováno v: Journal of Molecular Spectroscopy. 217:249-254
This work reports the ultraviolet absorption spectrum and cross-sections of ethynyl (C 2 H) radicals in the wavelength range 235–260 nm, determined at T =298 K and at a total pressure of about 20 kPa (150 Torr). Ethynyl radicals were produced from
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7627dd01f134de944c070515d7147212
https://doi.org/10.1016/s0022-2852(02)00039-5
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10
Kinetics and products of propargyl (C3H3) radical self-reactions and propargyl-methyl cross-combination reactions
Autor: Akshaya K. Nayak, Askar Fahr
Publikováno v: International Journal of Chemical Kinetics. 32:118-124
Propargyl (HCCCH2) and methyl radicals were produced through the 193-nm excimer laser photolysis of mixtures of C3H3Cl/He and CH3N2CH3/He, respectively. Gas chromatographic and mass spectrometric (GC/MS) product analyses were employed to characterize
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f314fdf1f9ac977c55fe798cf0d63a84
https://doi.org/10.1002/(sici)1097-4601(2000)32:2<118::aid-kin8>3.0.co
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