Now showing items 1-10 of 22
Analysis of the torsion-rotation spectra of the isotopic methanol molecules
(Elsevier, 1972-08)
The high resolution infrared spectra of CH3OH, CH3OD, CD3OH and CD3OD observed by D. R. Woods and C. W. Peters in the region from 400 to 900 cm-1 have been analyzed to obtain the molecular moments of inertia, the barrier ...
Assignments of the n[pi]* singlet states of p-benzoquinone
(Elsevier, 1974-03-30)
The vapor phase fluorescence spectra of p-benzoquinone-h4 and d4 are reported and discussed in relation to the assignment of the low lying singlet states. The low temperature, polarized single crystal electronic absorption ...
A new method for the direct measurement of spectral line strengths and widths,
(Elsevier, 1972-04)
The most important sources of error incurred in the measurements of spectral-line parameters arise from uncertainty in the determination of the 100 per cent transmittance and in the distortion of the line profile by the ...
Raman spectra and vibrational assignments for 1,1,1-trihaloethanes and their deuterium derivatives
(Elsevier, 1970-04)
Raman spectra of the first three members of the 1,1,1-trihaloethane series, CH3CX3, X = F, Cl, Br, were obtained for the liquids under low resolution. All but two active fundamental vibrational frequencies were observed, ...
The ground state fundamentals of p-benzoquinone and p-benzoquinone-d4
(Elsevier, 1974-03-30)
The solid state infrared and Raman spectra of p-benzoquinone and several isotopic derivatives are reported and compared with the results of previous solution and vapor phase studies and with the results of previously ...
Computation of electric dipole matrix elements for hydrogen fluoride
(Elsevier, 1973-02)
The electric dipole matrix elements of hydrogen fluoride have been calculated by numerical integration for transitions involving large quantum numbers [upsi], J. Overtones have been included through [Delta][upsi] = 5 . ...
Carbon suboxide as a quasilinear molecule with a large amplitude bending mode : Determination of the molecular constants and the [nu]7 potential function
(Elsevier, 1976-12)
The model of a quasilinear molecule with a large amplitude bending mode is used to treat C3O2. The Hamiltonian operator, including the rotation-vibration interaction, is derived allowing only a single vibrational degree ...
A band model formulation for very nonuniform paths
(Elsevier, 1972-05)
Anomalous behavior has been observed when molecular band-models incorporating the Curtis-Godson or similar approximations are applied to problems characterized by a large variation in temperature along the optical path. ...
Microwave spectrum and structure of ethylene ozonide: Effects of large axes rotations in structure calculations
(Elsevier, 1976-03-30)
Rotational spectra for 14 isotopic species of ethylene ozonide have now been assigned. The consistency of the Kraitchman substitution structure was checked by calculating the Op---Op bond distance six ways; the values ...
Spectroscopic studies of Lewis acid‐base complexes. III: Vibrational frequencies, assignments and normal coordinate analyses for isotopic varieties of phosphine borane and trifluorophosphine borane
(John Wiley & Sons, Ltd., 1974-04)
Vibrational spectra of the two Lewis complexes, phosphine borane, PH 3 BH 3 , and trifluoro‐phosphine borane, PF 3 BH 3 , have been investigated for several isotopic species preserving C 3 v symmetry. New assignments ...