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Wavenumbers, strengths, widths and shifts with pressure of lines in four bands of gaseous 16O2 in the systems a1Δg−X3Σg− and b1Σg+−X3Σg−
Abstract In spectra of gaseous oxygen at 299 K with pressure/bar in the range [0.13,1.06] and lengths of absorbing path up to 107 m, we measured the wavenumbers, strengths, widths and shifts withExpand
Enhancement of deuterated ethane on Jupiter
We report laboratory measurements of cross sections of CH3D and C2H5D in the extreme ultraviolet. The results are incorporated in a photochemical model for the deuterated hydrocarbons up to C2 in theExpand
Laboratory investigation of hydrogenated diamond surfaces: Implications for the formation and size of interstellar nanodiamonds
The formation and size of interstellar diamonds have been investigated by infrared spectroscopy in the laboratory. Employing hot-filament chemical vapor deposition (CVD) to synthesize theExpand
Temperature dependence of absorption cross-section of H2O, HOD, and D2O in the spectral region 140–193nm
Abstract Measurements of absolute photoabsorption cross-sections of H 2 O, D 2 O and HOD in the spectral range 140–195 nm were performed at 295, 275, and 250 K using a double-beam absorption cellExpand
Performance of the vacuum ultraviolet high-resolution and high-flux beamline for chemical dynamics studies at the Advanced Light Source
At the Advanced Light Source an undulator beamline, with an energy range from 6 to 30 eV, has been constructed for chemical dynamics experiments. The higher harmonics of the undulator are suppressedExpand
Photodissociation dynamics of OClO
Photofragment translational energy spectroscopy was used to study the dissociation dynamics of a range of electronically excited OClO(A 2A2) vibrational states. For all levels studied, correspondingExpand
UV Absorption Cross Sections of ClOOCl Are Consistent with Ozone Degradation Models
Molecules were directly quantified before and after ultraviolet photolysis, avoiding interference from impurity or by-product absorptions that can plague more traditional detection schemes that measure attenuation of a light beam and suggest that the highest laboratory estimates for atmosphericphotolysis rates of ClOOCl are reasonable. Expand
Absorption Cross Sections of NH3, NH2D, NHD2, and ND3 in the Spectral Range 140-220 nm and Implications for Planetary Isotopic Fractionation
Cross sections for photoabsorption of NH_3, NH_2D, NHD_2, and ND_3 in the spectral region 140-220 nm were determined at ~298 K using synchrotron radiation. Absorption spectra of NH_2D and NHD_2 wereExpand
Infrared spectra of the solvated hydronium ion: Vibrational predissociation spectroscopy of mass-selected H3O+.cntdot.(H2O)n.cntdot.(H2)m
Infrared spectra of the mass-selected clusters H{sub 3}O{sup +}{sm bullet}(H{sub 2}O){sub n}{sm bullet}(H{sub 2}) and H{sub 3}O{sup +}{sm bullet}(H{sub 2}){sub n} (n = 1,2, and 3) were observed byExpand
Infrared–ultraviolet double resonance studies of benzene molecules in a supersonic beam
We have used IR excitation to selectively create populations in admixtures of the zeroth‐order states comprising the ∼3000 cm−1 ‘‘C–H stretching Fermi triad’’ of benzene. UV spectra of the 260 nmExpand