scholarly journals Quantum Chemical Calculation on Structure and Potential Energy Curve for the Ground State of Molecule LaH

2002 ◽  
Vol 18 (08) ◽  
pp. 737-740
Author(s):  
Chen Lin-Hong ◽  
◽  
Shang Ren-Cheng
2012 ◽  
Vol 116 (7) ◽  
pp. 1717-1729 ◽  
Author(s):  
Laimutis Bytautas ◽  
Nikita Matsunaga ◽  
Gustavo E. Scuseria ◽  
Klaus Ruedenberg

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.


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