So, there is an inherent contradiction in treating the molecule as a rigid rotator and a harmonic oscillator at the same time . talk ) 14 : 16, 7 February 2011 ( UTC)
2.
In three dimensions, a rigid rotator can be described by two angles \ scriptstyle \ theta and \ scriptstyle \ phi, where \ scriptstyle \ theta is the inclination relative to an arbitrarily chosen " z "-axis while \ scriptstyle \ phi is the rotator angle in the projection to the " x " " y " plane.
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