Lamb dip studies of the nuclear quadrupole coupling and dipole moment in an excited vibrational state of NH2D

1976 ◽  
Vol 64 (12) ◽  
pp. 4968-4972 ◽  
Author(s):  
E. W. Van Stryland ◽  
R. L. Shoemaker
Keyword(s):  
Dipole Moment ◽  
Vibrational State ◽  
Excited Vibrational State ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole

Microwave Spectrum of N-Methyl Morpholine

1974 ◽  
Vol 52 (3) ◽  
pp. 434-439 ◽  
Author(s):  
S. C. Dass ◽  
R. Kewley
Keyword(s):  
Dipole Moment ◽  
Vibrational State ◽  
Microwave Spectrum ◽  
Coupling Constants ◽  
Vibrational States ◽  
Methyl Group ◽  
Ground Vibrational State ◽  
Chair Form ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole

The microwave spectrum of N-methyl morpholine has been investigated within the 8 to 40 GHz region. The observed rotational constants for the ground vibrational state are (in MHz), A = 4821.235(0.077), B = 2342.579(0.004), and C = 1719.452(0.003). The dipole moment components have been determined as (in D), μa = 1.21(0.02), μc = 0.10(0.03), and μ= 1.21(0.02). The values of these parameters show that the observed spectrum is due to the chair form with an equatorial methyl group. The 14N nuclear quadrupole coupling constants have the values (in MHz), χaa = 2.4(0.1), χbb =.6(0.3) and χcc = −5.0(0.2). Sets of rotational transitions due to six excited vibrational states have also been assigned.

Microwave Spectrum, Nuclear Quadrupole Coupling Constants, Dipole Moment, and Structure of Chlorine Pentafluoride, ClF5

1976 ◽  
Vol 31 (12) ◽  
pp. 1638-1643 ◽  
Author(s):  
H. K. Bodenseh ◽  
W. Hüttner ◽  
P. Nowicki
Keyword(s):  
Dipole Moment ◽  
Vibrational State ◽  
Bond Angle ◽  
Microwave Spectrum ◽  
Coupling Constants ◽  
Frequency Data ◽  
Ground Vibrational State ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole ◽  
Rotational Transitions

AbstractSeveral rotational transitions in the ground vibrational state of 35ClF5 and 37ClF5 have been measured. From the frequency data the following constants have been derived: B0(35ClF5) = 3550.272(4) MHz; B0(37ClF5) = 3545.885 (4) MHz; DJ = 0.76(9) kHz; DJK = -0.67 (15) kHz; e Q q(35ClF5) = 43.93(8) MHz; e Q q(37ClF5) = 34.63(6) MHz; μ = 0.536(10) D. The bond angle Fax-Cl-Feq is estimated at 86.5(1.0)°.

Improved Rotational Constants and Dipole Moment and a Nuclear Quadrupole Coupling Analysis of 2-Cyanothiophene and Dipole Moment of 2-Cyanofurane

1977 ◽  
Vol 32 (2) ◽  
pp. 152-155 ◽  
Author(s):  
J. Wiese ◽  
L. Engelbrecht ◽  
H. Dreizler
Keyword(s):  
Dipole Moment ◽  
Stark Effect ◽  
Dipole Moments ◽  
Quadrupole Coupling Constant ◽  
Rotational Constant ◽  
Coupling Constant ◽  
Frequency Range ◽  
Effect Analysis ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole

Results of a microwave investigation of the molecules 2-Cyanothiophene and 2-Cyanofurane are reported. The microwave spectrum of 2-Cyanothiophene was examined in the frequency range of 13 -40 GHz mainly to get a more accurate rotational constant A from the assignment of μb-btransitions. From the resolved hyperfine structure due to nuclear quadrupole coupling of the 14N-nucleus the quadrupole coupling constant X+=Xbb + Xcc was determined for 2-Cyanothiophene. No information for X- was available from the measured transitions.From Stark effect studies the dipole moments were determined for both molecules. The nuclear quadrupole coupling as a perturbation of the second order Stark effect was included in the Stark effect analysis

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
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