Results 151 to 160 of about 5,600 (211)
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The Journal of Chemical Physics, 1963
The linewidth of the 91,9→82,6 transition of sulfur dioxide broadened by methyl bromide and sulfur dioxide itself has been measured at different pressures of the broadener. The measured linewidth for SO2–CH3Br collisions is 13.64 Mc/mm. The hard-sphere collision diameter corresponding to this is 12.1 Å as compared to the kinetic collision diameter of 4.
null Krishnaji, Suresh Chandra
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The linewidth of the 91,9→82,6 transition of sulfur dioxide broadened by methyl bromide and sulfur dioxide itself has been measured at different pressures of the broadener. The measured linewidth for SO2–CH3Br collisions is 13.64 Mc/mm. The hard-sphere collision diameter corresponding to this is 12.1 Å as compared to the kinetic collision diameter of 4.
null Krishnaji, Suresh Chandra
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Kinetics and Catalysis, 2003
The interactions of Al2O3, CeO2, Pt/Al2O3, and Pt/CeO2 films with SO2, SO2 + H2O, SO2 + O2, and SO2 + O2 + H2O in the temperature range 300–673 K at the partial pressures of SO2, O2, and H2O equal to 1.5 × 102, 1.5 × 102, and 3 × 102 Pa, respectively, were studied using X-ray photoelectron spectroscopy.
M. Yu. Smirnov +7 more
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The interactions of Al2O3, CeO2, Pt/Al2O3, and Pt/CeO2 films with SO2, SO2 + H2O, SO2 + O2, and SO2 + O2 + H2O in the temperature range 300–673 K at the partial pressures of SO2, O2, and H2O equal to 1.5 × 102, 1.5 × 102, and 3 × 102 Pa, respectively, were studied using X-ray photoelectron spectroscopy.
M. Yu. Smirnov +7 more
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A shock tube study of vibrational relaxation in SO2, SO2Ar and SO2He
Chemical Physics, 1980Abstract Vibrational relaxation times in SO 2 , SO 3 Ar (11%, 20% and 54% SO 2 ) and SO 2 He (9.5% SO 2 ) were measured behind incident shock waves using the laser schlieren technique in the temperature ranges 550–1200 K, 700–2100 K and 700–1600 K respectively for the three systems.
V.V.N. Kishore, S.V. Babu, V. Subra Rao
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Microwave spectra and structure for SO2⋅⋅⋅H2S, SO2⋅⋅⋅HDS, and SO2⋅⋅⋅D2S complexes
The Journal of Chemical Physics, 1987Microwave spectra for the SO2⋅⋅⋅H2S, SO2⋅⋅⋅HDS, and SO2⋅⋅⋅D2S complexes were measured using a pulsed beam, Fourier transform microwave spectrometer. Both a-dipole and c-dipole transitions were obtained. A total of 24 transitions were obtained for SO2⋅⋅⋅H2S, yielding A=8447.3(2), B=1762.004(7), C=1538.483(7) MHz, ΔJ=5.04(2) , ΔJK=65.46(9) , ΔK=−323(240)
R. E. Bumgarner +2 more
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Detoxification of SO2 in conifers differing in SO2-tolerance
Planta, 1995Contents of organic sulfur, sulfate and the inorganic cations K+, Ca2+, Mg2+, Mn2+ and Na+ were compared in needles of three conifer species differing in tolerance to chronic SO2 immissions. Sulfate and organic sulfur compounds were also measured in bark and wood.
Katja H�ve +4 more
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The vibrational spectra of molecular ions isolated in solid neon. XVI. SO2+, SO2−, and (SO2)2−
The Journal of Chemical Physics, 2000When a Ne:SO2 mixture is subjected to Penning ionization and/or photoionization by neon atoms in their first excited states, between 16.6 and 16.85 eV, and the products are rapidly frozen at approximately 5 K, the infrared spectrum of the resulting deposit includes absorptions assigned with the aid of isotopic substitution studies to SO, SO2+, SO2 ...
Daniel Forney +3 more
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Excited-neutral-metastable SO2 formation in the , O3-olefin-SO2, and active nitrogen-SO2 systems
Chemical Physics Letters, 1980Abstract Long-liied (τ > 10 −3 s), electronically-excited ( E * > 4 eV) neutral metastables, whose formation was attributed to the presence of SO 2 , were observed in the three titled systems. Their possible identity as collisionally-accessed metastable states of the normal , cyclic , or superoxide isomers of SO 2 is discussed.
Richard I. Martinez, John T. Herron
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Action of SO2 on Plants and Metabolic Detoxification of SO2
1997SO2 is a potentially toxic air pollutant which diffuses only slowly through the protecting layers of epidermal tissues of higher plants, but enters leaves rapidly through open stomata. Inside leaves, it dissolves in the aqueous phase of the apoplast, is hydrated to sulfurous acid, and is finally trapped as bisulfite and sulfite in the slightly alkaline
Ulrich Heber, Katja Hüve
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The photodissociation of SO2+·
International Journal of Mass Spectrometry and Ion Processes, 1985Abstract The first ion photodissociation study of SO2+· is reported. Unlike CH3I+· which photodissociates from the molecular ion ground state, SO2+· is observed to photopredissociate from the A and B states via the C and D states. The C ← B contribution to the low energy region is assigned and vibrational frequencies of 100, 46.5 and 55.5 meV are ...
S.P. Goss +2 more
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Atmospheric Environment (1967), 1978
Abstract SO2 concentration gradient measurements are reported, which have been carried out between May 1975 and September 1976 at the Kernforschungsanlage Julich. Most of the measurements were made with differential optical absorption spectroscopy. Mirrors at various heights (30, 80, 120m) on the meterological tower were used to reflect the light ...
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Abstract SO2 concentration gradient measurements are reported, which have been carried out between May 1975 and September 1976 at the Kernforschungsanlage Julich. Most of the measurements were made with differential optical absorption spectroscopy. Mirrors at various heights (30, 80, 120m) on the meterological tower were used to reflect the light ...
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