Bulletin of the Chemical Society of Japan · 1973 · 29 citations · 2 references
Natural SciencesChemistryPhysicsMolecular PhysicsSpectroscopic AnalysisSpectroscopyHyperfine StructureMicrowave SpectroscopyMolecular SpectroscopyMolecular SymmetryNuclear SpectroscopyRotational SpectroscopyDipole Moment DeterminationHyperfine Structure ConstantsHyperfine Structure MeasurementsMolecular Rotational ConstantsNuclear Dipole MomentsNuclear Quadrupole CouplingNuclear Quadrupole MomentsQuadrupole Interaction
Abstract The quadrupole hyperfine structure was resolved and analyzed for the vibrationally-ground state of the NH2 species. The quadrupole coupling constants are: χaa=2.34, χbb=1.86, and χcc=−4.20 MHz. The rotational constants obtained from the quadrupole corrected frequencies are as follows: A=5617.67, B=2593.88, and C=1777.04 MHz. The rotational constants of the ND2 species in the vibrationally-ground state were also determined. By the use of the moments of inertia of both species, the non-planarity of this molecule was ascertained. The dipole moments of the NH2 and the ND2 species were determined to be 1.15±0.02 D and 1.13±0.01 D respectively.
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