Abstract

The band spectra of diatomic molecules P<sub>2</sub>, AS<sub>2</sub>, Sb<sub>2</sub> and Bi<sub>2</sub> were investigated in the spectral range 2100–10 000 Å with a medium-size spectrograph, using a discharge tube developed for studies of forbidden lines. A study of the excitation conditions of various bands shows, among other things, that the bands previously ascribed to As<sub>2</sub><sup>+</sup> actually are emitted from a low-lying electronic state of the As<sub>2</sub> molecule. Several new band systems were found, for some of which a vibrational analysis wvas carried out. This permits the identification of three new electronic states for the P<sub>2</sub> molecule and two new states for the As<sub>2</sub> molecule. Four of these states are located below the previously known excited states of these molecules and belong to the triplet term system. A comparison with the N<sub>2</sub> spectrum shows that for this group of diatomic molecules the <sup>3</sup>II<i><sub>g</sub></i> state, located above the <sup>3</sup>Σ<sub><i>u</i></sub><sup>+</sup> state for the N<sub>2</sub> molecule, becomes gradually depressed below the <sup>3</sup>Σ<sub><i>u</i></sub><sup>+</sup> state as the atomic number of the element increases.

PDF Article

References

  • View by:
  • |
  • |

  1. S. Mrozowski and C. Santaram, J. Opt. Soc. Am. 56, 1174 (1966).
  2. M. Hults and S. Mrozowski, J. Opt. Soc. Am. 54, 855 (1964).
  3. G. Herzberg, Ann. Physik. 15, 677 (1932).
  4. G. Herzberg, Phys. Rev. 69, 362 (1946).
  5. G. Herzberg, L. Herzberg, and G. Milne, Can. J. Research A18, 139 (1940).
  6. M. Ashley, Phys. Rev. 44, 919 (1933).
  7. A. E. Douglas and K. Suryanarayama Rao, Can. J. Phys. 36, 565 (1958).
  8. K. Dressler, Helv. Phys. Acta 28, 563 (1955).
  9. N. A. Narasimham, Can. J. Phys. 35, 1242 (1957).
  10. G. M. Almy and G. D. Kinzer, Phys. Rev. 47, 721 (1935).
  11. G. D. Kinzer and G. M. Almy, Phys. Rev. 52, 814 (1937).
  12. G. Herzberg, Molecular Spectra and Molecular Structure (D. Van Nostrand Co. New York, 1950), 2nd ed.
  13. G. E. Gibson and A. MacFarlane, Phys. Rev. 46, 1059 (1934).
  14. G. Nakamura and L. Shidei, Japan J. Appl. Phys. 10, 11 (1935).
  15. S. M, Naudé, South African J. Sci. 32, 103 (1935).
  16. G. M. Almy, J. Phys. Chem. 41, 47 (1937).
  17. S. Mrozowski, Phys. Rev. 69, 169 (1946).

Almy, G. M.

G. M. Almy and G. D. Kinzer, Phys. Rev. 47, 721 (1935).

G. D. Kinzer and G. M. Almy, Phys. Rev. 52, 814 (1937).

G. M. Almy, J. Phys. Chem. 41, 47 (1937).

Ashley, M.

M. Ashley, Phys. Rev. 44, 919 (1933).

Douglas, A. E.

A. E. Douglas and K. Suryanarayama Rao, Can. J. Phys. 36, 565 (1958).

Dressler, K.

K. Dressler, Helv. Phys. Acta 28, 563 (1955).

Gibson, G. E.

G. E. Gibson and A. MacFarlane, Phys. Rev. 46, 1059 (1934).

Herzberg, G.

G. Herzberg, Molecular Spectra and Molecular Structure (D. Van Nostrand Co. New York, 1950), 2nd ed.

G. Herzberg, Ann. Physik. 15, 677 (1932).

G. Herzberg, Phys. Rev. 69, 362 (1946).

G. Herzberg, L. Herzberg, and G. Milne, Can. J. Research A18, 139 (1940).

Herzberg, L.

G. Herzberg, L. Herzberg, and G. Milne, Can. J. Research A18, 139 (1940).

Hults, M.

M. Hults and S. Mrozowski, J. Opt. Soc. Am. 54, 855 (1964).

Kinzer, G. D.

G. M. Almy and G. D. Kinzer, Phys. Rev. 47, 721 (1935).

G. D. Kinzer and G. M. Almy, Phys. Rev. 52, 814 (1937).

MacFarlane, A.

G. E. Gibson and A. MacFarlane, Phys. Rev. 46, 1059 (1934).

Milne, G.

G. Herzberg, L. Herzberg, and G. Milne, Can. J. Research A18, 139 (1940).

Mrozowski, S.

M. Hults and S. Mrozowski, J. Opt. Soc. Am. 54, 855 (1964).

S. Mrozowski and C. Santaram, J. Opt. Soc. Am. 56, 1174 (1966).

S. Mrozowski, Phys. Rev. 69, 169 (1946).

Nakamura, G.

G. Nakamura and L. Shidei, Japan J. Appl. Phys. 10, 11 (1935).

Narasimham, N. A.

N. A. Narasimham, Can. J. Phys. 35, 1242 (1957).

Naudé, S. M

S. M, Naudé, South African J. Sci. 32, 103 (1935).

Rao, K. Suryanarayama

A. E. Douglas and K. Suryanarayama Rao, Can. J. Phys. 36, 565 (1958).

Santaram, C.

S. Mrozowski and C. Santaram, J. Opt. Soc. Am. 56, 1174 (1966).

Shidei, L.

G. Nakamura and L. Shidei, Japan J. Appl. Phys. 10, 11 (1935).

Other (17)

S. Mrozowski and C. Santaram, J. Opt. Soc. Am. 56, 1174 (1966).

M. Hults and S. Mrozowski, J. Opt. Soc. Am. 54, 855 (1964).

G. Herzberg, Ann. Physik. 15, 677 (1932).

G. Herzberg, Phys. Rev. 69, 362 (1946).

G. Herzberg, L. Herzberg, and G. Milne, Can. J. Research A18, 139 (1940).

M. Ashley, Phys. Rev. 44, 919 (1933).

A. E. Douglas and K. Suryanarayama Rao, Can. J. Phys. 36, 565 (1958).

K. Dressler, Helv. Phys. Acta 28, 563 (1955).

N. A. Narasimham, Can. J. Phys. 35, 1242 (1957).

G. M. Almy and G. D. Kinzer, Phys. Rev. 47, 721 (1935).

G. D. Kinzer and G. M. Almy, Phys. Rev. 52, 814 (1937).

G. Herzberg, Molecular Spectra and Molecular Structure (D. Van Nostrand Co. New York, 1950), 2nd ed.

G. E. Gibson and A. MacFarlane, Phys. Rev. 46, 1059 (1934).

G. Nakamura and L. Shidei, Japan J. Appl. Phys. 10, 11 (1935).

S. M, Naudé, South African J. Sci. 32, 103 (1935).

G. M. Almy, J. Phys. Chem. 41, 47 (1937).

S. Mrozowski, Phys. Rev. 69, 169 (1946).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.