Rotational g Factor. Nuclear Spin-Rotation Coupling Constant

9 Rotational g Factor. Nuclear Spin-Rotation Coupling Constant C in kHz 

Diagonal and nondiagonal elements of the g tensor of the PHDT molecule were based on the data above for PH3 [2, 3]. 

The components C, (parallel) and (perpendicular to C3) of the nuclear spin-rotation coupling constant were derived for both and from an rf spectrum of PH3, taken with a molecular-beam electric-resonance spectrometer [6]  

Rovibrational corrections were applied to the data above for ip (which are valid for the zero-point vibrational state) to yield the equilibrium values C, e( P) ==C, (3ip)-1.30 and Ci.e( P)-CJ3ip)+i.45 [7]. 

The PH2D microwave spectrum for two rotational transitions showed a hyperfine structure due to 31P spin-rotation interaction with (Caa + Cbb)/2 = (Caa+Ccc)/2 = -98 3 kHz (a, b, c=principal inertial axes) [13]. 

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