F. Legay et N. Legaysommaire, MERCURY-INDUCED VIBRATIONAL LINES IN AN ALPHA-NITROGEN MATRIX, Journal of physical chemistry, 99(15), 1995, pp. 5277-5282
The infrared spectroscopy of a nitrogen matrix doped with mercury was
revisited with an high resolution Fourier transform spectrometer. The
detection of a new line and more accurate frequencies and intensities
obliges us to revise the previous line attributions (Legay, F.; Legay-
Sommaire, N.; Chandrasekharan, V. J. Phys. Chem. 1990, 94, 8548). The
previous model is still valid on the condition that we modify the orie
ntation of the twelve nearest neighbors around a mercury atom and intr
oduce three different coupling constants. The vibrational emission lin
es of Nz in its ground electronic state have been measured from nu' 5
to nu' 16 and, in comparison with the gas phase data, show the variati
on of the matrix effect with the vibrational excitation. The presence
of additional weak emission lines at low temperature suggests that sma
ll proportions of excited nitrogen molecules are in particular sites.