Abstract

The N2O infrared spectrum in the 900–1090- and 1580–2380-cm−1 regions was studied at a 0.005-cm−1 resolution with a Fourier-transform spectrometer. Measurements were made of line frequencies of the species 14N216O, 14N15N16O, 15N14N16O, 14N218O, 14N217O, 15N216O, 14N15N18O, and 15N14N18O for several ground-state bands and hot bands. A few of these bands are reported for the first time to the author’s knowledge. The observed line frequencies were analyzed to obtain values of band centers and upper-state effective rotational constants. Results from the least-squares fits for the 0400–0000, 0420(e)–0000, and 0510–0110 bands of the 14N216O molecule indicate that the high-J levels of the upper states are perturbed. Resonance interactions were observed in transitions in the 1001–1000 band of 14N216O and 15N14N16O and the 1111(f)–1110(f), 0600–0200, 0600–1000, and 0620(e)–1000 bands of 14N216O.

© 1987 Optical Society of America

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References

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  1. R. A. Toth, “Line strengths of N2O in the 1120 to 1440 cm−1 region,” Appl. Opt. 23, 1825–1834 (1984).
    [Crossref]
  2. R. A. Toth, “N2O line frequencies in the 1100–1430-cm−1 region,” J. Opt. Soc. Am. B 3, 1263–1281 (1986).
    [Crossref]
  3. L. R. Brown and R. A. Toth, “Comparison of the frequencies of NH3, CO2, H2O, N2O, CO, and CH4as infrared calibration standards,” J. Opt. Soc. Am. B 2, 842–856 (1985).
    [Crossref]
  4. B. Whitford, K. J. Siemsen, H. D. Riccus, and G. R. Hanes, “Absolute frequency measurements of N2O laser transitions,” Opt. Commun. 14, 70–74 (1975).
    [Crossref]
  5. J. S. Wells, D. A. Jennings, A. Hinz, J. S. Murray, and A. G. Maki, “Heterodyne frequency measurements on N2O at 5.3 and 9.0 μ m,” J. Opt. Soc. Am. B 2, 857–861 (1985).
    [Crossref]
  6. C. Amiot and G. Guelachvili, “Extension of the 106samples Fourier spectrometry to the indium antimonide region: vibration–rotation bands of 14N216O: 3.3–5.5μm region,” J. Mol. Spectrosc. 59, 171–190 (1976).
    [Crossref]
  7. C. Amiot, “Vibration–rotation bands of 14N15N16O–15N14N16O; 1.6–5.7μm region,” J. Mol. Spectrosc. 59, 191–208 (1976).
    [Crossref]
  8. C. Amiot, “Vibration–rotation 1 bands of 15N216O–14N218O,” J. Mol. Spectrosc. 59, 380–395 (1976).
    [Crossref]
  9. J. M. Krell and R. L. Sams, “Vibration–rotation bands of nitrous oxide: 4.1 micron region,” J. Mol. Spectrosc. 51, 492–507 (1974).
    [Crossref]
  10. R. A. Toth, “Line positions and strengths of CO2in the 1200–1430 cm−1region,” Appl. Opt. 24, 261–274 (1985).
    [Crossref]
  11. L. R. Brown, J. S. Margolis, R. H. Norton, and B. D. Stedry, “Computer measurements of line strengths with application to the methane spectrum,” Appl. Spectrosc. 37, 287–292 (1983).
    [Crossref]
  12. R. A. Toth, “Line strengths of N2O in the 2.9 micron region,” J. Mol. Spectrosc. 40, 588–604 (1971).
    [Crossref]

1986 (1)

1985 (3)

1984 (1)

1983 (1)

1976 (3)

C. Amiot and G. Guelachvili, “Extension of the 106samples Fourier spectrometry to the indium antimonide region: vibration–rotation bands of 14N216O: 3.3–5.5μm region,” J. Mol. Spectrosc. 59, 171–190 (1976).
[Crossref]

C. Amiot, “Vibration–rotation bands of 14N15N16O–15N14N16O; 1.6–5.7μm region,” J. Mol. Spectrosc. 59, 191–208 (1976).
[Crossref]

C. Amiot, “Vibration–rotation 1 bands of 15N216O–14N218O,” J. Mol. Spectrosc. 59, 380–395 (1976).
[Crossref]

1975 (1)

B. Whitford, K. J. Siemsen, H. D. Riccus, and G. R. Hanes, “Absolute frequency measurements of N2O laser transitions,” Opt. Commun. 14, 70–74 (1975).
[Crossref]

1974 (1)

J. M. Krell and R. L. Sams, “Vibration–rotation bands of nitrous oxide: 4.1 micron region,” J. Mol. Spectrosc. 51, 492–507 (1974).
[Crossref]

1971 (1)

R. A. Toth, “Line strengths of N2O in the 2.9 micron region,” J. Mol. Spectrosc. 40, 588–604 (1971).
[Crossref]

Amiot, C.

C. Amiot, “Vibration–rotation bands of 14N15N16O–15N14N16O; 1.6–5.7μm region,” J. Mol. Spectrosc. 59, 191–208 (1976).
[Crossref]

C. Amiot, “Vibration–rotation 1 bands of 15N216O–14N218O,” J. Mol. Spectrosc. 59, 380–395 (1976).
[Crossref]

C. Amiot and G. Guelachvili, “Extension of the 106samples Fourier spectrometry to the indium antimonide region: vibration–rotation bands of 14N216O: 3.3–5.5μm region,” J. Mol. Spectrosc. 59, 171–190 (1976).
[Crossref]

Brown, L. R.

Guelachvili, G.

C. Amiot and G. Guelachvili, “Extension of the 106samples Fourier spectrometry to the indium antimonide region: vibration–rotation bands of 14N216O: 3.3–5.5μm region,” J. Mol. Spectrosc. 59, 171–190 (1976).
[Crossref]

Hanes, G. R.

B. Whitford, K. J. Siemsen, H. D. Riccus, and G. R. Hanes, “Absolute frequency measurements of N2O laser transitions,” Opt. Commun. 14, 70–74 (1975).
[Crossref]

Hinz, A.

Jennings, D. A.

Krell, J. M.

J. M. Krell and R. L. Sams, “Vibration–rotation bands of nitrous oxide: 4.1 micron region,” J. Mol. Spectrosc. 51, 492–507 (1974).
[Crossref]

Maki, A. G.

Margolis, J. S.

Murray, J. S.

Norton, R. H.

Riccus, H. D.

B. Whitford, K. J. Siemsen, H. D. Riccus, and G. R. Hanes, “Absolute frequency measurements of N2O laser transitions,” Opt. Commun. 14, 70–74 (1975).
[Crossref]

Sams, R. L.

J. M. Krell and R. L. Sams, “Vibration–rotation bands of nitrous oxide: 4.1 micron region,” J. Mol. Spectrosc. 51, 492–507 (1974).
[Crossref]

Siemsen, K. J.

B. Whitford, K. J. Siemsen, H. D. Riccus, and G. R. Hanes, “Absolute frequency measurements of N2O laser transitions,” Opt. Commun. 14, 70–74 (1975).
[Crossref]

Stedry, B. D.

Toth, R. A.

Wells, J. S.

Whitford, B.

B. Whitford, K. J. Siemsen, H. D. Riccus, and G. R. Hanes, “Absolute frequency measurements of N2O laser transitions,” Opt. Commun. 14, 70–74 (1975).
[Crossref]

Appl. Opt. (2)

Appl. Spectrosc. (1)

J. Mol. Spectrosc. (5)

R. A. Toth, “Line strengths of N2O in the 2.9 micron region,” J. Mol. Spectrosc. 40, 588–604 (1971).
[Crossref]

C. Amiot and G. Guelachvili, “Extension of the 106samples Fourier spectrometry to the indium antimonide region: vibration–rotation bands of 14N216O: 3.3–5.5μm region,” J. Mol. Spectrosc. 59, 171–190 (1976).
[Crossref]

C. Amiot, “Vibration–rotation bands of 14N15N16O–15N14N16O; 1.6–5.7μm region,” J. Mol. Spectrosc. 59, 191–208 (1976).
[Crossref]

C. Amiot, “Vibration–rotation 1 bands of 15N216O–14N218O,” J. Mol. Spectrosc. 59, 380–395 (1976).
[Crossref]

J. M. Krell and R. L. Sams, “Vibration–rotation bands of nitrous oxide: 4.1 micron region,” J. Mol. Spectrosc. 51, 492–507 (1974).
[Crossref]

J. Opt. Soc. Am. B (3)

Opt. Commun. (1)

B. Whitford, K. J. Siemsen, H. D. Riccus, and G. R. Hanes, “Absolute frequency measurements of N2O laser transitions,” Opt. Commun. 14, 70–74 (1975).
[Crossref]

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Tables (15)

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Table 1 N2O Lower-State Effective Rotational Constants (cm−1)

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Table 2 Summary of Analysis of N2O Bands Originating from Ground and 0110 Statesa

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Table 3 Summary of Analysis of N2O Bands Originating from Excited States above the 0110 Statea

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Table 4 Upper-State Effective Rotational Constants of N2O Bands Originating from the Ground and 0110 States (cm−1)a

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Table 5 Upper-State Effective Rotational Constants of N2O Bands Originating from the Excited States Above the 0110 States (cm−1)a

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Table 6 Measured Line Positions (cm−1) of the N2O Bands 0001–0000, 0111(e)–0110(e), and 0111(f)–0110(f)a

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Table 7 Measured Line Positions (cm−1) of the 14N216O Bands 0400–0000, 0420(e)–0000a

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Table 8 Measured Line Positions (cm−1) of the 14N216O Bands 0510(e)–0110(e) and 0510(f)–0110(f)a

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Table 9 Measured Line Positions (cm−1) of the 14N216O Bands 0600–0200, 0620(e)–0220(e), and 0620(f)–0

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Table 10 Measured Line Positions (cm−1) of the 14N216O Bands 1001–1000 and 1001–0001a

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Table 11 Measured Line Positions (cm−1) of the 14N216O Bands 0600–1000 and 0620(e)–1000(e)a

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Table 12 Measured Line Positions (cm−1) of the 0001–0000 Band for the Isotopic Species 456, 546, and 448a

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Table 13 Measured Line Positions (cm−1) of the 0001–0000 Band of the Isotopic Species 447 and 556a

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Table 14 Measurements in the 0001–1000 Band of 14N216O (cm−1)a

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Table 15 Heterodyne Measurements of the 1110–0000 Band of 14N216O Observed by Wells et al. Given in Ref. 5 (cm−1)a

Equations (2)

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E R = B X - D X 2 + H X 3 + L X 4 , E V R = G + E R , X = J ( J + 1 ) ,
ν ( J J ) + E R = G - G + B X - D X 2 + H X 3 + L X 4 ,             ν 0 = G - G ,

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