The Ã2A1-&Xtilde;2B1 electronic transition of NH2 is reinvestigated in the region of its barrier to linearity. A detailed rotational analysis is performed on its laser optogalvanic spectrum recorded in the region 11 300-14 300 cm-1 and on its near infrared Fourier transform emission spectrum. Many new excited levels are identified resulting from more than 2900 assigned lines. A number of them are high levels of &Xtilde;2B1. A set of molecular parameters has been obtained. Numerous perturbations are detected and discussed. This analysis confirms the predictions obtained from previous calculations and allows the estimation of their accuracy. Copyright 1999 Academic Press.