Photoionization studies of the atmospherically important species N and OH at the Elettra synchrotron radiation source

For OH, CIS spectra have been recorded for the first photoelectron band corresponding to the ionization OH+(X3Σ−, v+ = 0) ← OH(X2Π, v″ = 0). In these spectra, rotationally partially resolved bands associated with OH*(a1Δ3d, v′ = 0) ← OH(X2Π, v″ = 0) resonances have been observed. Suggestions for their assignment are made on the basis of their positions and band simulations which use rotational line strength calculations.