The one-to-one clusters of the 2,5-lutidyl radical [2-CH3,5-(ĊH2)C5H3N] with Ar, N2, CH4, CF4, C2H6, C3H8, C4H10, and C2H4 are studied by fluorescence excitation spectroscopy, mass resolved excitation spectroscopy, and ab initio and semiempirical calculational techniques. Cluster binding energies for the ground (D0) and excited (D1) states, cluster spectroscopic shifts, and van der Waals cluste...

leading to homogeneous formation of COX. Support for the importance of the homogeneous process consists of calculations which show that the rates of the competing reactions are comparable to the coupling reaction of CH3 to form C2H6, and the detection of increased concentrations of C3H6 when l3C2H4 is added to the CH4/02 mixture. (iii) Results for the I3C content of CO and C 0 2 , though scatte...

We report calculated elastic and inelastic cross sections for low-energy electron collisions with methylsilane, CH3SiH3 , obtained using the Schwinger multichannel method. The elastic cross sections, obtained within the static-exchange approximation, are compared with elastic results for C2H6 and Si2H6. Electron-impact excitation cross sections were computed for sixteen electronic states arisin...

2014 The oxidation of methane and n-butane with CO2 has been studied in 35 MHz electrical discharges, operated at variable gas flow rates (6-30 (STP) min-1), power densities (2-8 cal cm-3 s-1) and constant pressure of 20 torr. Evidence is presented that the primary step of the process is the rupture of a C-H bond and that the main route for the conversion of both methane and n-butane into CO is...

catalysts with the formula of laco(1+x)o(3+δ), where 0 ≤ x ≤ 1, were studied for oxidation of co and c2h6 in a synthetic exhaust gas, comprising 6.0 % co and 0.2 % c2h6 in ar. ethane was selected as a model for hydrocarbons in the exhaust gas. the performance of catalysts is correlated to their properties, particularly their redox in oxidizing and reducing atmospheres. xrd patterns show perovsk...

We obtained high resolution (λ/δλ∼ 10,000–20,000) infrared (IR) spectra of Comet 21P/Giacobini–Zinner (GZ) at five different wavelengths between 1.9 and 5.0 μm during 25–29 October 1998 using CSHELL at the NASA Infrared Telescope Facility (IRTF) on Mauna Kea. We also obtained a moderate resolution (λ/δλ∼ 680) spectrum covering the wavelength range from 3.082 to 3.720 μm on 29 October 1998 using...

Commercial exploitation of hydrogen-rich natural gas (CH4/C2H6/H2, HRNG) requires the development a technology platform for safe and economical transportation storage. Recent discoveries confirm that HRNG mixtures can be stored in hydrates under moderate pressure temperature conditions. Here, we demonstrate enhanced uptake mixture clathrate hydrate catalysts by two different classes promoters t...