Results and Theory of Gaseous Spectroscopy

  • D. J. E. Ingram

Abstract

The results obtained from normal microwave gaseous spectroscopy are considered in this chapter, and since it is the dipole moment of the molecule as a whole that interacts with the microwave field, the energy states giving rise to the transitions are molecular states and levels, not those associated with just one atom. Molecular spectroscopy covers a wide range of frequencies, since moments of inertia and other molecular parameters vary by several orders of magnitude, and in essence the same kind of spectra are observed in the microwave region as in the infra-red. The former, however, is generally concerned with pure rotational energy levels, whereas the higher energy changes in the latter correspond to vibrational as well as rotational transitions. The great advantage of microwave spectroscopy, compared with normal infra-red work, is that very high resolution is attainable and the frequency of the spectral lines can be measured to a high degree of accuracy with corresponding precision in the determination of such parameters as bond lengths and angles. Microwave spectroscopy is also much more sensitive than corresponding infra-red work, and hence is ideally suited for measurements on very small quantities of gas, such as compounds containing artificial radioactive elements.

Keywords

Absorption Line Electric Dipole Moment Hyperfine Structure Rotational Energy Stark Effect 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Dicke, R. H., Beringer, R., Kyhl, R. L. and Vane, A. B. Phys. Rev. 70 (1946) 340.ADSGoogle Scholar
  2. 2.
    Becker, G. E. and Autler, S. H. Phys. Rev. 70 (1946) 300.ADSGoogle Scholar
  3. 3.
    Townes, C. H. and Merritt, F. R. Phys. Rev. 70 (1946) 558.ADSGoogle Scholar
  4. 4.
    Gordy, W. and King, W. C. Phys. Rev. 93 (1953) 407.Google Scholar
  5. 5.
    Dennison, D. M. Rev. mod. Phys. 12 (1940) 189.ADSGoogle Scholar
  6. 6.
    Golden, S., Wentink, T., Hillger, R. E. and Strandberg, M. W. P. Phys. Rev. 73 (1948) 92.ADSGoogle Scholar
  7. 7.
    Strandberg, M. W. D., Wentink, T., Hillger, R. E., Wannier, G. H. and Deutsch, M. L. Phys. Rev. 73 (1948) 188.ADSGoogle Scholar
  8. 8.
    Strandberg, M. W. P. J. chem. Phys. 17 (1949) 901.ADSGoogle Scholar
  9. 9.
    Beard, G. I. and Bianco, D. R. J. chem. Phys. 20 (1952) 1488.ADSGoogle Scholar
  10. 10.
    Anderson, R. S. Johnson, G. M. and Gordy, W. Phys. Rev. 83 (1951) 1061.ADSGoogle Scholar
  11. 11.
    Beringer, R. Phys. Rev. 70 (1946) 53.ADSGoogle Scholar
  12. 12.
    Burkhalter, J. H., Anderson, R. S., Smith, W. V. and Gordy, W. Phys. Rev. 77 (1950) 152.ADSGoogle Scholar
  13. Burkhalter, J. H., Anderson, R. S., Smith, W. V. and Gordy, W. Phys. Rev. 79 (1950) 651.ADSGoogle Scholar
  14. 13.
    Trambarulo, R., Ghosh, S. N., Burrus, C. A. and Gordy, W. Phys. Rev. 91 (1953) 222.Google Scholar
  15. 14.
    Pauling, L. and Wilson, E. B. Introduction to Quantum Mechanics McGraw-Hill (1935).Google Scholar
  16. 15.
    Herzberg, G. Spectra of Diatomic Molecules p. 104. Van Nostrand, New York (1951).Google Scholar
  17. 16.
    Nielsen, A. H. J. chem. Phys. 11 (1943) 160.ADSGoogle Scholar
  18. 17.
    Johnson, C. M., Trambarulo, R. and Gordy, W. Phys. Rev. 84 (1951) 1178.ADSGoogle Scholar
  19. 18.
    Nielsen, H. H. Phys. Rev. 77 (1950) 130.ADSGoogle Scholar
  20. Nielsen, H. H. and Shaffer, W. J. chem. Phys. 11 (1943) 140.ADSGoogle Scholar
  21. 19.
    Schulman, R. G. and Townes, C. H. Phys. Rev. 77 (1950) 421.ADSGoogle Scholar
  22. 20.
    Townes, C. H., Merritt, F. R. and Wright, B. D. Phys. Rev. 73 (1948) 1334.ADSGoogle Scholar
  23. 21.
    Smith, A. G., Ring, H., Smith, W. V. and Gordy, W. Phys. Rev. 14 (1948) 370.ADSGoogle Scholar
  24. 22.
    Westenberg, A. A. and Wilson, E. B. J. Amer. chem. Soc. 72 (1950) 199.Google Scholar
  25. 23.
    Stitch, M. L., Honig, A. and Townes, C. H. Phys. Rev. 86 (1952) 813.ADSGoogle Scholar
  26. Klein, J. A. and Nethercot, A. H. Phys. Rev. 91 (1953) 1018.ADSGoogle Scholar
  27. Gordy, W. and Burrus, C. A. Phys. Rev. 93 (1954) 419.ADSGoogle Scholar
  28. 24.
    Dennison, D. M. Rev. mod. Phys. 3 (1931) 280 and ref. (26) p. 26.ADSMATHGoogle Scholar
  29. 25.
    Slawsky, Z. I. and Dennison, D. M. J. chem. Phys. 7 (1939) 509.ADSGoogle Scholar
  30. 23.
    Herzberg, G. Infra-Red and Raman Spectra p. 400. Van Nostrand (1945).Google Scholar
  31. 27.
    Anderson, W. E., Trambarulo, R., Sheridan, J. and Gordy, W. Phys. Rev. 82 (1951) 58.ADSGoogle Scholar
  32. 28.
    Ring, H., Edwards, H., Kessler, M. and Gordy, W. Phys. Rev. 72 (1947) 1262.ADSGoogle Scholar
  33. 29.
    Johnson, M. and Dennison, D. M. Phys. Rev. 48 (1935) 868.ADSGoogle Scholar
  34. 30.
    Gordy, W., Simmons, J. W. and Smith, A. G. Phys. Rev. 74 (1948) 243.ADSGoogle Scholar
  35. 31.
    Sharbaugh, A. H. Phys. Rev. 74 (1948) 1870.ADSGoogle Scholar
  36. Sharbaugh, A. H., Thomas, V. G. and Pritchard, B. S. Phys. Rev. 78 (1950) 64.ADSGoogle Scholar
  37. 32.
    Sheridan, J. and Gordy, W. J. chem. Phys. 20 (1952) 591.ADSGoogle Scholar
  38. 33.
    Williams, J. Q. and Gordy, W. J. chem. Phys. 18 (1950) 994.ADSGoogle Scholar
  39. 34.
    Honig, A., Stitch, M. L. and Mandel, M. Phys. Rev. 92 (1953) 901.ADSGoogle Scholar
  40. 35.
    Gordy, W. and Sheridan, J. Phys. Rev. 79 (1950) 224.Google Scholar
  41. 36.
    Sharbaugh, A. H., Pritchard, B. S., Thomas, V. G., Mays, J. M. and Dailey, B. P. Phys. Rev. 79 (1950) 189.ADSGoogle Scholar
  42. 37.
    Kisliuk, P. and Townes, G. H. J. chem. Phys. 18 (1950) 1109.ADSGoogle Scholar
  43. 38.
    Ghosh, S. N., Trambarulo, R. and Gordy, W. J. chem. Phys. 20 (1952) 605.ADSGoogle Scholar
  44. 39.
    Tate, P. and Strandberg, M. W. P. Phys. Rev. 91 (1953) 464.Google Scholar
  45. Tate, P. and Strandberg, M. W. P. Rev. sci. Instrum. 25 (1954) 956.ADSGoogle Scholar
  46. Stitch, M. L., Honig, A. and Townes, C. H. Rev. sci. Instrum. 25 (1954) 759.ADSGoogle Scholar
  47. 40.
    Randall, H. M., Dennison, D. M., Ginsburg, N. and Weber, L. R. Rev. sci. Instrum. 52 (1937) 160.Google Scholar
  48. 41.
    King, G. W., Hainer, R. M. and Cross, P. C. J. chem. Phys. 11 (1943) 27.ADSGoogle Scholar
  49. 42.
    Golden, S. J. chem. Phys. 16 (1948) 78.ADSMathSciNetGoogle Scholar
  50. 43.
    Wang, S. C. Phys. Rev. 34 (1929) 243.ADSGoogle Scholar
  51. 44.
    Nielsen, H. H. Rev. mod. Phys. 23 (1951) 90.ADSMATHGoogle Scholar
  52. 45.
    Hainer, R. M., Gross, P. C. and King, G. W. J. chem. Phys. 17 (1949) 826.ADSGoogle Scholar
  53. 46.
    Sirvetz, M. H. J. chem. Phys. 19 (1951) 938.ADSGoogle Scholar
  54. 47.
    Strandberg, M. W. P. J. chem. Phys. 17 (1949) 901.ADSGoogle Scholar
  55. 48.
    Hillger, R. E. and Strandberg, M. W. P. Phys. Rev. 83 (1951) 575.ADSGoogle Scholar
  56. 49.
    Lawrance, R. B. and Strandberg, M. W. P. Phys. Rev. 83 (1951) 363.ADSGoogle Scholar
  57. 50.
    Roberts, A. and Edgell, W. F. J. chem. Phys. 17 (1949) 742.ADSGoogle Scholar
  58. 51.
    Myers, R. J. and Gwinn, W. D. Phys. Rev. 20 (1952) 1420.Google Scholar
  59. 52.
    Jones, L. H., Shodery, J. N., Shulman, R. G. and Yost, D. M. Phys. Rev. 18 (1950) 990.Google Scholar
  60. 53.
    Beard, C. I. and Dailey, B. P. Phys. Rev. 18 (1950) 1437.Google Scholar
  61. 54.
    Herzberg, G. Infra-Red and Raman Spectra of Polyatomic Molecules Van Nostrand, New York (1945).Google Scholar
  62. 55.
    Gleeton, C. E. and Williams, N. H. Phys. Rev. 45 (1934) 234.ADSGoogle Scholar
  63. 56.
    Strandberg, M. W. P. and Dreicer, H. Phys. Rev. 94 (1954) 1393.ADSGoogle Scholar
  64. 57.
    Gordon, J. P., Zeiger, H.J. and Townes, C. H. Phys. Rev. 95 (1954) 282.ADSGoogle Scholar
  65. 58.
    Wright, N. and Randall, H. M. Phys. Rev. 44 (1933) 391.ADSGoogle Scholar
  66. 59.
    Bleaney, B. and Penrose, R. P. Proc. Roy. Soc. A 189 (1947) 358.ADSGoogle Scholar
  67. 60.
    Gostain, C. C. Phys. Rev. 82 (1951) 108.ADSGoogle Scholar
  68. 61.
    Weiss, M. T. and Strandberg, M. W. P. Phys. Rev. 83 (1951) 567.ADSGoogle Scholar
  69. 62.
    Lyons, H., Rueger, L. J., Nuckolls, R. G. and Kessler, M. Phys. Rev. 81 (1951) 630.ADSGoogle Scholar
  70. 63.
    Anderson, P. W. Phys. Rev. 76 (1949) 647.ADSMATHGoogle Scholar
  71. 64.
    Nielsen, H. H. Phys. Rev. 40 (1932) 445.ADSMATHGoogle Scholar
  72. 65.
    Koehler, J. S. and Dennison, D. M. Phys. Rev. 57 (1940) 1006.ADSGoogle Scholar
  73. 66.
    Hershberger, W. D. and Turkevitch, J. Phys. Rev. 71 (1947) 554.ADSGoogle Scholar
  74. 67.
    Dailey, B. P., Minden, H. T. and Shulman, R. G. Phys. Rev. 75 (1949) 1319.Google Scholar
  75. 68.
    Sheridan, J. and Gordy, W. J. chem. Phys. 19 (1951) 965.ADSGoogle Scholar
  76. 69.
    Kisliuk, P. and Silvey, G. A. Phys. Rev. 20 (1952) 517.Google Scholar
  77. 70.
    Van Vleck, J. H. Theory of Electric and Magnetic Susceptibilities O.U.P. (1932).Google Scholar
  78. 71.
    Darin, T. W., Good, W. E. and Coles, D. K. Phys. Rev. 70 (1946) 560.ADSGoogle Scholar
  79. 72.
    Tate, P. A. and Strandberg, M. W. P. J. chem. Phys. 22 (1954) 1380.ADSGoogle Scholar
  80. 73.
    Stitch, M. L., Honig, A. and Townes, C. H. Rev. sci. Instrum. 25 (1954) 759.ADSGoogle Scholar
  81. 74.
    Golden, S. and Wilson, E. B. J. chem. Phys. 16 (1948) 669.ADSGoogle Scholar
  82. 75.
    Ferguson, R. C. and Wilson, E. B. Phys. Rev. 90 (1953) 338.Google Scholar
  83. 76.
    Low, W. and Townes, G. H. Phys. Rev. 76 (1949) 1295.ADSMATHGoogle Scholar
  84. Schulman, R. G. and Townes, C. H. Phys. Rev. 77 (1950) 500.ADSGoogle Scholar
  85. Schulman, R. G., Dailey, B. P. and Townes, C. H. Phys. Rev. 78 (1950) 145.ADSGoogle Scholar
  86. 77.
    Good, W. E. Phys. Rev. 70 (1946) 213.ADSGoogle Scholar
  87. 78.
    Coles, D. K. and Good, W. E. Phys. Rev. 70 (1946) 979.ADSGoogle Scholar
  88. 79.
    Jauch, J. M. Phys. Rev. 72 (1947) 715.ADSGoogle Scholar
  89. 80.
    Wick, G. C. Phys. Rev. 73 (1948) 51.ADSGoogle Scholar
  90. 81.
    Jen, C. K. Physica 17 (1951) 379.ADSGoogle Scholar
  91. 82.
    Jen, C. K. Phys. Rev. 74 (1948) 1396.ADSGoogle Scholar
  92. Jen, C. K. Phys. Rev. 76 (1949) 1494.ADSGoogle Scholar
  93. 83.
    Jen, C. K. Ann. N.Y. Acad. Sci. 55 (1952) 822.ADSGoogle Scholar
  94. 84.
    Ramsey, N. F. Phys. Rev. 58 (1940) 226.ADSGoogle Scholar
  95. 85.
    Beringer, R. and Castle, J. G. Phys. Rev. 75 (1949) 1963.ADSGoogle Scholar
  96. Beringer, R. and Castle, J. G. Phys. Rev. 76 (1949) 868.ADSGoogle Scholar
  97. 86.
    Born, M. Optik, Springer, Berlin (1933).Google Scholar
  98. 87.
    Casimir, H. B. G. Physica 2 (1935) 719.ADSGoogle Scholar
  99. 88.
    Coles, D. K. and Good, W. E. Phys. Rev. 70 (1946) 979.ADSGoogle Scholar
  100. 89.
    Van Vleck, J. H. Phys. Rev. 71 (1947) 468.Google Scholar
  101. 90.
    Gordy, W., Simmons, J. W. and Smith A. G. Phys. Rev. 74 (1948) 243.ADSGoogle Scholar
  102. 91.
    Gilliam, O. R., Edwards, H. D. and Gordy W. Phys. Rev. 73 (1948) 635.ADSGoogle Scholar
  103. Townes, C H., Merritt, F. R. and Wright, B. D. Phys. Rev. 73 (1948) 1334.ADSGoogle Scholar
  104. 92.
    Bardeen, J. and Townes, C. H. Phys. Rev. 73 (1948) 627 and 1204.ADSGoogle Scholar
  105. 93.
    Bardeen, J. and Townes, C. H. Phys. Rev. 73 (1948) 97.ADSGoogle Scholar
  106. 94.
    Townes, C. H., Holden, A. N. and Merritt, F. R. Phys. Rev. 74 (1948) 1113.ADSGoogle Scholar
  107. 95.
    Weiss, M. T., Strandberg, M. W. P., Lawrence, R. B. and Loomis, C. C. Phys. Rev. 78 (1950) 202.ADSGoogle Scholar
  108. 96.
    Gordy, W., Ring, H. and Bing, A. B. Phys. Rev. 74 (1948) 1191.ADSGoogle Scholar
  109. 97.
    Townes, C. H. and Geschwind, S. Phys. Rev. 74 (1948) 626.ADSGoogle Scholar
  110. Cohen, V. W., Koski, W. S. and Wentink, T. Phys. Rev. 76 (1949) 703.ADSGoogle Scholar
  111. 98.
    Townes, C. H., Holden, A. N., Bardeen, J. and Merritt, F. R. Phys. Rev. 71 (1947) 644.ADSGoogle Scholar
  112. 99.
    Townes, C. H., Mays, J. M. and Dailey, B. P. Phys. Rev. 76 (1949) 700.ADSGoogle Scholar
  113. 100.
    Hardy, W. A., Silvey, G. and Townes, C. H. Phys. Rev. 86 (1952) 608.Google Scholar
  114. 101.
    Livingstone, R., Gilliam, O. R. and Gordy, W. Phys. Rev. 76 (1949) 149.ADSGoogle Scholar
  115. 102.
    Jaccarino, V., King, J. G., Satten, R. A. and Stroke, H. H. Phys. Rev. 94 (1954) 1798.ADSGoogle Scholar
  116. 103.
    Kusch, P. and Eck, T. G. Phys. Rev. 94 (1954) 1799.ADSGoogle Scholar
  117. 104.
    Henderson, R. S. and Van Vleck, J. H. Phys. Rev. 74 (1948) 106.ADSGoogle Scholar
  118. 105.
    Henderson, R. S. Phys. Rev. 74 (1948) 107.ADSGoogle Scholar
  119. 106.
    Simmons, J. W. and Gordy, W. Phys. Rev. 73 (1948) 713.ADSGoogle Scholar
  120. 107.
    Good, W. E., Coles, D. K., Gunther-Mohr, G. R., Shawlow, A. L. and Townes, C. H. Phys. Rev. 83 (1951) 880.Google Scholar
  121. Good, W. E., Coles, D. K., Gunther-Mohr, G. R., Shawlow, A. L. and Townes, C. H. Phys. Rev. 94 (1954) 1184.ADSGoogle Scholar
  122. 108.
    Gorden, J. P., Zeiger, H. J. and Townes, C. H. Phys. Rev. 95 (1954) 282.ADSGoogle Scholar

Copyright information

© Butterworths Scientific Publications 1955

Authors and Affiliations

  • D. J. E. Ingram
    • 1
  1. 1.University of SouthamptonUK

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