1970/04/01 by W. J. Balfour, Walter J. Balfour, A. E. Douglas · 2 citations
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Cold Atom Physics and Bose-Einstein Condensates #Spectroscopy and Laser Applications
paper · doi:10.1139/p70-116
crossref issued 1970/04/01 · crossref published 1970/04/01 · crossref published-print 1970/04/01 · openalex publication_date 1970/04/01 · crossref created 2011/04/23 · crossref deposited 2025/07/02 · openalex created_date 2025/10/10 · crossref indexed 2026/07/29 · openalex updated_date 2026/07/29
The absorption spectrum of the Mg 2 molecule, which occurs in a furnace containing Mg vapor, has been photographed with a high resolution spectrograph. The rotational structures of the bands have been analyzed and the rotational and vibrational constants of the two states determined. The bands are found to arise from a 1 Σ– 1 Σ transition between a very lightly bonded ground state and a more stable excited state. The R.K.R. potential energy curve of the ground state, which has a dissociation energy of 399 cm −1 , has been determined. The more important constants of the ground state are ω e = 51.12 cm −1 , ω e x e = 1.64 cm −1 , r e = 3.890 Å and those of the upper state are ω e = 190.61 cm −1 , ω e x e = 1.14 cm −1 , r e = 3.082 Å.