Extension of the A1Σ+-X1Σ+ system of7LiH near the dissociation limit
The absorption spectra of7LiH have been photographed in the 3,500−2,900 Å region using the second order of a 3.4 M Ebert spectrograph. Observations comprise previously observedA1Σ+-X1Σ+ transitions and several new vibrational bands of this system near the ionisation limit. Rotational and vibrational analysis of these bands (16≦V′≦20) have been carried out and the rotational constants for the upper states have been determined.