Use of a special Penning-ionization source allowed Fourier-transform recording of two previously nonobserved IR emission bands spectra at 5480 and 7630 cm-1 arising from neutral N-2. The first of these bands is the c(4)(') (1)Sigma(u)(+)-a(') (1)Sigma(g)(+) (0,0) transition, both states involved being previously known by direct vacuum (UV) absorption spectroscopy. The second band corresponds to a d(3) (1)Sigma(g)(+)-c(4)(') (1)Sigma(u)(+) (0,0) transition, in which the upper level belongs to an up to now unidentified Rydberg state. Both the upper and lower levels are perturbed by neighboring valence state levels. (C) 2004 American Institute of Physics.