The Parallel Type Absorption Bands of Ammonia

摘要: The form of the ammonia molecule is discussed together with theory that all vibrational levels should be double due to two equivalent positions equilibrium nitrogen atom. This serves explain doubling \ensuremath{\parallel} band at 10.5\ensuremath{\mu} and further predicts lines 3.0\ensuremath{\mu} also appear as doublets although a much finer separation. An experimental search made for using an infrared spectrometer high resolving power. effect found, each fine structure line appearing doublet mean separation about 1.6 ${\mathrm{cm}}^{\ensuremath{-}1}$. theoretical intensities type bands are computed assuming hydrogen nucleus possesses spin $\frac{1}{2}(\frac{h}{2\ensuremath{\pi}})$. When these values compared observed bands, very satisfactory agreement obtained. furnishes strong argument bands. It proves those states existing in nature have vibration---rotation---nuclear wave functions which antisymmetrical interchange atoms.