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Trajectory calculations are reported for the systems H+CN, H+NC, and H+NSi.(AIP)
Three‐body association coefficients for the conversion of atomic He + , Ne + , and Ar + ions to molecular ions have been determined using drift‐tube mass‐spectrometer techniques at gas temperatures from 78 to 300 K. The 300 K results for the conversion of He + to He 2 + agree well with...
Using a refinement of a capillary technique described earlier precise P V T data on D 2 O between 0.1 and 140 MPa and down to −30 °C have been obtained, and the pressure dependence of the volumetric behavior in the vicinity of the well‐known density maximum has been examined. The...
The resonantly enhanced multiphoton ionization (REMPI) spectra of pyrrole (C 4 H 5 N), N ‐methyl pyrrole (C 5 H 7 N), and furan (C 4 H 4 O) have been measured in the wavelength region from 365 to 680 nm. New and previously observed Rydberg states are reported for pyrrole and furan. Vibrational...
The mobilities ( K ) and longitudinal diffusion coefficients ( D L ) of Na + ions in Kr and Xe gases have been measured near 300°K and at gas pressures about 0.400 Torr.
We present a crossed beam study of the proton transfer reaction H 2 + (Ar,H) HAr + over an extended energy range. At the lowest collision energies (∼0.4 eV), the reaction appears to proceed with substantial interaction among all three atoms, while the dynamics become ’’direct’’ in the...
In the course of a study of the absolute infrared absorption intensities of the fundamentals of liquid normal alkanes at different temperatures, the authors derived the enthalpy difference between the conformational isomers of liquid butane and pentane.(AIP)
Cross sections for 1 P 1 → 3 P 1 excitation transfer in Ca and Sr have been measured for the noble gases, using simultaneous measurements of the integrated 1 P 1 and 3 P 1 fluorescence intensities and the observed 1 P 1 decay rate. The cross sections range from 10 −18 to 10 −16 cm 2 .
A recently developed model for vibrational population relaxation in pure fluids is extended to the case of mixtures. The predictions of the model are compared to experimental measurements in the hydrogen/argon system.
Photoisomerization processes of polyenes in the triplet mechanism are investigated theoretically. Global features of the lowest triplet and the ground state potential surfaces are evaluated for butadiene, pentadiene, hexatriene, and the protonated Schiff base of butadiene in an a b i n i t i o...
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