ROTATIONAL SPECTRA OF RbF BY THE ELECTRIC RESONANCE METHOD

1958 ◽  
Vol 36 (2) ◽  
pp. 171-183 ◽  
Author(s):  
H. Lew ◽  
D. Morris ◽  
F. E. Geiger Jr. ◽  
J. T. Eisinger
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Internuclear Distance ◽  
Electric Dipole ◽  
Molecular Beam ◽  
Resonance Method ◽  
Mass Ratio ◽  
Electric Resonance ◽  
Rotational States ◽  
Rotational Spectra

Transitions between the J = 0 and J = 1 rotational states of RbF have been measured by means of the molecular beam electric resonance method. The following rotational constants have been determined (all frequencies in Mc./sec):[Formula: see text]The quadrupole interaction constants −eqQ/h in the J = 1 state are found to be[Formula: see text]The equilibrium internuclear distance is re = (2.26554 ± 0.00005) × 10−8 cm. The electric dipole moment of Rb85F in the ν = 0 state is μ = (8.80 ± 0.10) × 10−18 e.s.u. The mass ratio of the Rb isotopes is M85/M87 = 0.9770148 ± 0.0000052.

ROTATIONAL SPECTRUM OF K39F BY THE MOLECULAR BEAM ELECTRIC RESONANCE METHOD

1960 ◽  
Vol 38 (3) ◽  
pp. 482-494 ◽  
Author(s):  
G. W. Green ◽  
H. Lew
Keyword(s):  
Dipole Moment ◽  
Quadrupole Interaction ◽  
Electric Dipole Moment ◽  
Internuclear Distance ◽  
Electric Dipole ◽  
Molecular Beam ◽  
Resonance Method ◽  
Rotational Spectrum ◽  
Electric Resonance ◽  
Rotational States

Transitions between the J = 0 and J = 1 rotational states of K39F have been measured by means of the molecular beam electric resonance method. The following rotational constants have been determined (all frequencies in Mc/sec):[Formula: see text]The quadrupole interaction constants eqQ as measured in the J = 1 state are found to be[Formula: see text]The equilibrium internuclear distance obtained directly from Be is[Formula: see text]The electric dipole moment in the ν = 0 state is[Formula: see text]

ROTATIONAL SPECTRA OF TIF BY THE MOLECULAR BEAM ELECTRIC RESONANCE METHOD

1965 ◽  
Vol 43 (10) ◽  
pp. 1701-1705 ◽  
Author(s):  
R. K. Ritchie ◽  
H. Lew
Keyword(s):  
Internuclear Distance ◽  
Molecular Beam ◽  
Resonance Method ◽  
Mass Ratio ◽  
Electric Resonance ◽  
Rotational Constants ◽  
Rotational Spectra ◽  
Isotopic Species

Measurement of the J = 1 ← J = 0 transitions in TIF by the molecular beam electric resonance method has resulted in the following values for the rotational constants (Mc/sec):[Formula: see text]The internuclear distance for both isotopic species calculated directly from Be = h/8π2μre2 is re = 2.08442 ± 0.00009 Å. The mass ratio of the thallium isotopes is M203/M205 =0.990240 ± 0.000020

ROTATIONAL CONSTANTS AND ELECTRIC DIPOLE MOMENT OF NaF

1963 ◽  
Vol 41 (9) ◽  
pp. 1461-1469 ◽  
Author(s):  
R. K. Bauer ◽  
H. Lew
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Molecular Beam ◽  
Resonance Method ◽  
Interaction Constant ◽  
Spin Rotation ◽  
Vibrational States ◽  
Electric Resonance ◽  
Rotational Constants

Transitions between the J = 0 and J = 1 rotational levels of Na23F19 have been measured by the molecular beam electric resonance method in the three lowest vibrational states. The following rotational constants have been determined (all frequencies in Mc/sec):[Formula: see text]The Na quadrupole interaction constants in the J = 1 level are:[Formula: see text]The spin-rotation interaction constant for Na in the J = 1 level for ν = 0, 1, and 2 is[Formula: see text]The equilibrium internuclear distance computed directly from Be is[Formula: see text]The electric dipole moment is:[Formula: see text]

Adiabatische Korrektur der Born-Oppenheimer-Näherung beim GeS und GeSe / Adiabatic Correction of the Born-Oppenheimer Approximation for GeS and GeSe

1976 ◽  
Vol 31 (3-4) ◽  
pp. 374-380 ◽  
Author(s):  
W. U. Stieda ◽  
E. Tiemann ◽  
T. Törring ◽  
J. Hoeft
Keyword(s):  
Dipole Moment ◽  
High Precision ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Rotational Constant ◽  
Frequency Range ◽  
Rotational Spectra ◽  
Oppenheimer Approximation

Abstract The rotational spectra of GeS and GeSe were measured in the frequency range of 66 GHz to 110 GHz with high precision. The breakdown of the Born-Oppenheimer approximation was observed for the rotational constant yol. With the known molecular 37-factor and the electric dipole moment the adiabatic part of the Born-Oppenheimer correction can be extracted from the primary observa-tion on y01. The adiabatic correction is very similar in both molecules but differs from the results in the earlier measurements on PbS.

Rotational Spectra of the Less Common Isotopomers, Electric Dipole Moment and the Double Minimum Inversion Potential of H2O···HCl

2000 ◽  
Vol 104 (30) ◽  
pp. 6970-6978 ◽  
Author(s):  
Z. Kisiel ◽  
B. A. Pietrewicz ◽  
P. W. Fowler ◽  
A. C. Legon ◽  
E. Steiner
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Rotational Spectra

Electric dipole moment of X2Π OH and OD in several vibrational states

1984 ◽  
Vol 62 (12) ◽  
pp. 1502-1507 ◽  
Author(s):  
K. I. Peterson ◽  
G. T. Fraser ◽  
W. Klemperer
Keyword(s):  
Dipole Moment ◽  
Electric Dipole ◽  
Vibrational State ◽  
Molecular Beam ◽  
Dipole Moments ◽  
Vibrational States ◽  
Electric Resonance ◽  
Resonance Technique ◽  
The Difference ◽  
Theoretical Results

Dipole moments are measured for OH (2Π) in the ν = 0, 1, and 2 vibrational states and for OD in the ν = 0 and 1 states using the molecular beam electric resonance technique. These are listed in the table below.[Formula: see text]A very accurate value of 0.00735(7) D is obtained for the difference in dipole moments between the ν = 0 and 1 vibrational states of OH. This is within 20% of the best theoretical results. The dependence on vibrational state is very nonlinear, which is also in agreement with theoretical results. Finally, the difference between the ν = 0 dipole moments of OH and OD is close to the expected value.

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