Thermal emission spectrum of NiBr molecule excited by vacuum graphite tube furnace revealed the existence of ten new band sub-systems in the region λλ 5540-4720 Å which were attributed toA→X,B→X,C→X andD→X transitions. Vibrational analysis was carried out for each of the systems mentioned above.A2 Δ has been suggested as the ground state of NiBr molecule with an electronic interval of about 533 cm−1. Transitions responsible for NiBr spectrum appear to be of the type2π–2Δ and2Δ–2Δ.
Volume 94, 2020
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