The (C) over tilde 2 Pi(v(NO)＇ = 0) <-- (X) over tilde (2)Pi(v " = 0) transitions in Ar . NO and Kr . NO are investigated using (2 +1) resonance-enhanced multiphoton ionization (REMPI) spectroscopy. The spectra consist of vibrational progressions, each member of which is seen to have a reproducible pattern of much closer spaced features; the latter are assigned as rotational structure associated with the n inertial axis of a near T-shaped complex. The spectra are successfully simulated using this model, which yields information on the geometry of the molecular complex in these vibronic states. Comparison is made with previously reported spectra for the (C) over tilde (2)Pi(v(NO)＇ = 1 and 2) <-- (X) over tilde (2)Pi(v(NO)" = 0) transition. The corresponding spectrum for Xe . NO is also discussed.