Preliminary report of the observation of the à 2Σ+←X̃ 2Π transition in N2·NO

A structured spectrum of the Ã 2Σ+←X̃ 2Π transition of the N2·NO complex has been recorded for the first time, employing the technique of one-colour (1+1) resonance-enhanced multiphoton ionization (REMPI) spectroscopy. The T0 value of the Ã 2Σ+←X̃ 2Π transition is determined as 44143.2±0.5 cm−1 and the dissociation energies of the X̃ and à states are estimated as ∼88 and 144 cm−1, respectively. The expected geometries and modes of bonding in the X̃ and à states are discussed by comparison with those of similar complexes.