title: Fine and Hyperfine Structure in 14N+2: The B2Sigma+u-X2Sigma+g (0, 0) Band.
abstract: The fine and hyperfine structure of the (0, 0) band of the B2Sigma+u-X2Sigma+g system of 14N+2 has been measured using fast-ion-beam laser spectroscopy. Rotational transitions with 0 </= N" </= 35 were recorded with a linewidth of approximately 0.0064 cm-1 full-width-half-maximum, allowing complete resolution of all strong hyperfine components. The frequencies of the line centers for N" >/= 3, together with the complete rotational line profiles for N" < 5, were used to determine the spin-rotation constants and the Fermi and dipolar hyperfine constants for the B and X states. This is the first time the hyperfine constants for v" = 0 have been measured for gas-phase N+2. Copyright 1998 Academic Press.
authors.affiliation: Department of Physics and Astronomy, University of Western Ontario, London, Ontario, N6A 3K7, Canada
authors.initials: TJ
authors.lastname: Scholl
authors.initials: RA
authors.lastname: Holt
authors.initials: SD
authors.lastname: Rosner