Accurate Potential Energy Curve for B2. Ab Initio Elucidation of the Experimentally Elusive Ground State Rotation-Vibration Spectrum

2012 ◽  
Vol 116 (7) ◽  
pp. 1717-1729 ◽  
Author(s):  
Laimutis Bytautas ◽  
Nikita Matsunaga ◽  
Gustavo E. Scuseria ◽  
Klaus Ruedenberg



2019 ◽  
Vol 15 (4) ◽  
pp. 2470-2480 ◽  
Author(s):  
Michał Lesiuk ◽  
Michał Przybytek ◽  
Justyna G. Balcerzak ◽  
Monika Musiał ◽  
Robert Moszynski


1999 ◽  
Vol 461-462 ◽  
pp. 351-357 ◽  
Author(s):  
Yoshi-ichi Suzuki ◽  
Takeshi Noro ◽  
Fukashi Sasaki ◽  
Hiroshi Tatewaki


From a consideration of the possible electron configurations in the NH molecule Mulliken predicted a stable 1 Ʃ + state lying about 1·9 volts above the ground state 3 Ʃ - . It is therefore to be anticipated that tran­sitions to this level from the known 1 II level will be observed simultaneously with the known 1 II → 1 ∆ transition. Mulliken estimated the shape of the potential energy curve for the 1 Ʃ + state; this corresponds to the existence of a 1 II → 1 Ʃ + band degraded to the red and lying in the neighbourhood of λ 4100. The plates from which the 1 II → 1 ∆ band was analysed were therefore examined for evidence of the 1 II → 1 Ʃ + band. After eliminating the numerous lines of the intense secondary spectrum of hydrogen which occurs in this region there remained only five unidentified lines. These are now seen to be the most intense lines of the Q branch of the λ 4502 band. The plates record the spectrum of a heavy current discharge in hydrogen containing a trace of nitrogen.



2000 ◽  
Vol 113 (15) ◽  
pp. 6154-6159 ◽  
Author(s):  
Massimo Mella ◽  
Gabriele Morosi ◽  
Dario Bressanini ◽  
Stefano Elli




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