Fourier transform emission spectra of the electronic transition A(2)Sigma(+)-X-2 Pi of N2O+

The Fourier transform emission spectrum of the electronic transition A (2)S igma (+)-(XII)-I-2 of N2O+ has been recorded at high resolution in the spec tral range 24 500-30 000 cm(-1), by using two different Penning ionization sources. The resolved rotational structures observed in the two records cor respond to rotational temperatures estimated to be about 340 and 30 K. A co mplete vibronic analysis has been carried out on the rotationally cold spec trum. All the assignments are in excellent agreement with the calculations of H. Gritli et al. [Chem. Phys. 178 (1993) 223], including the effects of Fermi resonances observed in (XII)-I-2. (C) 2001 Elsevier Science B.V. All rights reserved.