Dipole moment and hyperfine properties of the ground state and the C–H excited vibrational state of HCN

1984 ◽  
Vol 80 (9) ◽  
pp. 3989-3991 ◽  
Author(s):  
William L. Ebenstein ◽  
J. S. Muenter
Keyword(s):  
Dipole Moment ◽  
Ground State ◽  
Vibrational State ◽  
Excited Vibrational State ◽  
Hyperfine Properties

OPTICAL OBSERVATIONS OF THE STARK EFFECT ON OH

1965 ◽  
Vol 43 (1) ◽  
pp. 144-154 ◽  
Author(s):  
D. H. Phelps ◽  
F. W. Dalby
Keyword(s):  
Dipole Moment ◽  
Electric Fields ◽  
Ground State ◽  
Vibrational State ◽  
Stark Effect ◽  
Ultraviolet Spectrum ◽  
Optical Observations ◽  
Excited Vibrational State ◽  
Vibrational Ground State ◽  
Forbidden Transitions

The ultraviolet spectrum of the OH molecule has been obtained in electric fields up to 64 000 volts per cm. Stark line splittings, broadenings, and field-induced parity-forbidden transitions have been observed. The electric dipole moment of OH in its electronic and vibrational ground state (X2Π) has been determined to be (1.727 ± 0.02) Debyes. The dipole moment in the first excited vibrational state has been found to be about 4% lower.

Electric dipole moment of H2O in the ν2 excited vibrational state

1981 ◽  
Vol 75 (10) ◽  
pp. 4869-4872 ◽  
Author(s):  
Hiroaki Kuze ◽  
Takayoshi Amano ◽  
Tadao Shimizu
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Vibrational State ◽  
Excited Vibrational State

Torsions-Vibrations-Rotations-Wechselwirkung im Mikrowellenspektrum von Methylthiocyanat

1974 ◽  
Vol 29 (5) ◽  
pp. 797-803 ◽  
Author(s):  
U. Andresen ◽  
H. Dreizier
Keyword(s):  
Ground State ◽  
Vibrational State ◽  
Degrees Of Freedom ◽  
Molecular Model ◽  
Microwave Spectrum ◽  
Potential Parameter ◽  
Pure Torsion ◽  
Excited Vibrational State ◽  
The Absolute ◽  
Good Agreement

Abstract The microwave spectrum of methylthiocyanate is reinvestigated on the basis of a molecular model with five degrees of freedom, three for the overall rotation, one for the torsion and one for another vibration. It was possible to fit the splittings of all four measured states (ground state, first excited torsional and vibrational state and second excited vibrational state) with one set of parameters but it was impossible to fit the absolute line frequencies. The value for the potential parameter of the pure torsion V3 is in good agreement with that determined on the basis of the rigid framerigid top (RF-RT) model from the ground state.

scholarly journals The Microwave Spectrum of 3,4-Dihydro-1,2-Pyran

1985 ◽  
Vol 40 (9) ◽  
pp. 913-919
Author(s):  
Juan Carlos López ◽  
José L. Alonso
Keyword(s):  
Dipole Moment ◽  
Excited States ◽  
Ground State ◽  
Principal Axis ◽  
Microwave Spectrum ◽  
Average Intensity ◽  
Ring Conformation ◽  
Vibrationally Excited ◽  
Rotational Constants ◽  
Displacement Measurements

Abstract The rotational transitions of 3,4-dihydro-1,2-pyran in the ground state and six vibrationally excited states have been assigned. The rotational constants for the ground state (A = 5198.1847(24), B = 4747.8716(24) and C = 2710.9161(24) have been derived by fitting μa, μb and μc-type transitions. The dipole moment was determined from Stark displacement measurements to be 1.400(8) D with its principal axis components |μa| =1.240(2), |μb| = 0.588(10) and |μc| = 0.278(8) D. A model calculation to reproduce the ground state rotational constants indicates that the data are consistent with a twisted ring conformation. The average intensity ratio gives vibrational separations between the ground and excited states of the ring-bending and ring-twisting modes of ~ 178 and ~ 277 cm-1 respectively.

scholarly journals A new ab initio ground-state dipole moment surface for the water molecule

2008 ◽  
Vol 128 (4) ◽  
pp. 044304 ◽  
Author(s):  
Lorenzo Lodi ◽  
Roman N. Tolchenov ◽  
Jonathan Tennyson ◽  
A. E. Lynas-Gray ◽  
Sergei V. Shirin ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Water Molecule ◽  
Ab Initio ◽  
Ground State ◽  
Ground State Dipole Moment

Highly accurate potential-energy and dipole moment surfaces for vibrational state calculations of methane

2006 ◽  
Vol 124 (6) ◽  
pp. 064311 ◽  
Author(s):  
Chikako Oyanagi ◽  
Kiyoshi Yagi ◽  
Tetsuya Taketsugu ◽  
Kimihiko Hirao
Keyword(s):  
Dipole Moment ◽  
Potential Energy ◽  
Vibrational State
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