Radiofrequency Spectra ofLi6F19by the Molecular Beam Electric Resonance Method

1952 ◽  
Vol 88 (5) ◽  
pp. 1085-1092 ◽  
Author(s):  
J. C. Swartz ◽  
J. W. Trischka
Keyword(s):  
Molecular Beam ◽  
Resonance Method ◽  
Electric Resonance

scholarly journals Dipole Moments of Some Alkali Halide Molecules by the Molecular Beam Electric Resonance Method

1968 ◽  
Vol 48 (6) ◽  
pp. 2824-2825 ◽  
Author(s):  
A. J. Hebert ◽  
F. J. Lovas ◽  
C. A. Melendres ◽  
C. D. Hollowell ◽  
T. L. Story ◽  
...  
Keyword(s):  
Alkali Halide ◽  
Molecular Beam ◽  
Dipole Moments ◽  
Resonance Method ◽  
Electric Resonance

The molecular beam electric resonance spectrum of OPF3

1979 ◽  
Vol 57 (8) ◽  
pp. 1163-1173 ◽  
Author(s):  
W. Leo Meerts ◽  
Irving Ozier ◽  
Antoni Dymanus
Keyword(s):  
Molecular Beam ◽  
Stark Effect ◽  
Resonance Spectrum ◽  
Rotational Temperature ◽  
Resonance Method ◽  
Partition Functions ◽  
Vibrational States ◽  
Electric Resonance ◽  
Magnetic Resonance Data ◽  
Beam Technique

The molecular-beam electric resonance spectrum of phosphoryl fluoride (16OPF3) has been investigated. A hyperfine study of (K = 0) multiplets has been combined with earlier magnetic resonance data and chemical shift arguments to obtain four spin–rotation constants and two tensor spin–spin constants. The results (in kHz) are: [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], dFF = −2.3(9), and dFF = 4.1(9). A study of molecular magnetic effects has yielded the two molecular g-factors [Formula: see text] and [Formula: see text] as well as the anisotropy in the susceptibility [Formula: see text]. The molecular quadrupole moment has been calculated. From a study of the Stark effect, the electric dipole moment has been determined for the ground vibrational state and for the (ν5 = 1) and (ν6 = 1) fundamentals. The results are: μ = 1.86847(10) D, (μ5 − μ)/μ = −3.49(4) × 10−3, and (μ6 − μ)/μ = −0.65(4) × 10−3. For each of these two excited vibrational states, the l-doubling constants qt, and DqJ(t) (t = 5,6) have been obtained. This work demonstrates that the molecular beam electric resonance method can be applied to symmetric tops with relatively large room temperature rotational partition functions by reducing the rotational temperature to a few degrees kelvin with the seeded beam technique.

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