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

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]

1958 ◽  
Vol 36 (2) ◽  
pp. 171-183 ◽  
Author(s):  
H. Lew ◽  
D. Morris ◽  
F. E. Geiger Jr. ◽  
J. T. Eisinger

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.


1963 ◽  
Vol 41 (9) ◽  
pp. 1461-1469 ◽  
Author(s):  
R. K. Bauer ◽  
H. Lew

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]


1977 ◽  
Vol 32 (8) ◽  
pp. 890-896 ◽  
Author(s):  
J. Wiese ◽  
D. H. Sutter

Abstract The microwave rotational spectrum of the most abundant species of 3-Cyanothiophene was investigated for the ground vibrational state. Rotational constants and centrifugal distortion constants are given. The electric dipole moment components μa and μb and the 14N-quadrupole coupling constant X + = X bb + X cc were determined from the Stark-effect splittings and hfs-splittings respectively. The experimental results are compared to CNDO/2 calculations and are discussed with reference to ring distortion.


1969 ◽  
Vol 51 (11) ◽  
pp. 4873-4880 ◽  
Author(s):  
Irving Ozier ◽  
W. Ho ◽  
George Birnbaum

1998 ◽  
Vol 192 (2) ◽  
pp. 441-448 ◽  
Author(s):  
R.D. Suenram ◽  
F.J. Lovas ◽  
A.R. Hight Walker ◽  
D.A. Dixon

1984 ◽  
Vol 62 (12) ◽  
pp. 1502-1507 ◽  
Author(s):  
K. I. Peterson ◽  
G. T. Fraser ◽  
W. Klemperer

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.


Sign in / Sign up

Export Citation Format

Share Document