Nitride and Oxide Bands of Molybdenum

Abstract

Investigation of the orange system bands (5990–6300 Å) produced by a molybdenum arc in air shows that they are a nitride system, and not an oxide as previously reported. Isotope shifts using nitrogen‐14 and ‐15 are given. Evidence is presented that other bands, less conspicuous and hitherto unidentified, occurring in the red are an oxide of molybdenum, together with confirmation that the near‐infrared bands formerly attributed to an oxide are such.