ND4 Schüler band absorption observed by laser FM spectroscopy in a photochemical reaction

Abstract

Twenty‐one lines of the Schüler band of ND₄, previously observed in emission from high pressure ND₃ discharges and assigned to a transition between excited states, have been observed in absorption in the Hg‐photosensitized reaction of ND₃. In this system ND₄ is probably formed by a reaction of the HgND^*₃ exciplex. The observed transition originates from either the 3s, ²A₁ ground state or the 3p, ²F₂ excited state, the former being more likely.