Zeitschrift für Naturforschung A · 1980 · 24 citations · 0 references
ν 3Microwave SpectroscopyEngineeringLaser SciencePhysicsNatural SciencesSpectroscopyLaser SpectroscopyApplied PhysicsSpectra-structure CorrelationDiode Laser SpectrumPhysical ChemistryChemistryQuantum ChemistryHc 3Spectroscopic PropertyMolecular SpectroscopyVibration-rotation Band
The ν 3 vibration-rotation band of cyanoacetylene, HC 3 N, has been measured in the wavenumber range 2068 to 2095 cm -1 to an accuracy of better than ± 0.005 cm -1 using a diode laser spectrometer. The width of the observed lines is essentially limited by Doppler-broadening. The band center of the ν 3 vibration is determined from the observed P- and R-branch transitions to be at 2079.30500 (58) cm -1 . The rotational constant of the excited state is B′= 0.151212 (10) cm -1 .