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Amino radical

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Vibrational and/or electronic energy levels

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Marilyn E. Jacox

State:   Ryd


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 98049 gas Gibson, Greene, et al., 1985
To = 97193 gas Gibson, Greene, et al., 1985
To = 95753 gas Gibson, Greene, et al., 1985
To = 93054 gas Gibson, Greene, et al., 1985

State:   A


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 11122.23 ± 0.05 gas A-X 342 2700 Dressler and Ramsay, 1959
Kroll, 1975
Johns, Ramsay, et al., 1976
Vervloet, 1988
Ross, Birss, et al., 1988
Dixon, Irving, et al., 1991
Schleipen, ter Meulen, et al., 1992
Hadj Bachir, Huet, et al., 1999
Loomis, Reid, et al., 2000
Xin, Fan, et al., 2003
Ne A-X 344 880 Blindauer, Peric, et al., 1993
Ar A-X 344 880 Robinson and McCarty, 1959
Robinson, 1962
Milligan and Jacox, 1965
Blindauer, Peric, et al., 1993
Kr A-X 344 880 Robinson and McCarty, 1959
Robinson, 1962
Milligan and Jacox, 1965
Blindauer, Peric, et al., 1993
Xe A-X 344 880 Robinson and McCarty, 1959
Robinson, 1962
Milligan and Jacox, 1965
Blindauer, Peric, et al., 1993
N2 A-X 480 620 Milligan and Jacox, 1965
Milligan and Jacox, 1965
Ar A-X 344 790 Robinson and McCarty, 1959
Robinson, 1962
Milligan and Jacox, 1965
Kr A-X 344 790 Robinson and McCarty, 1959
Robinson, 1962
Milligan and Jacox, 1965
Xe A-X 344 790 Robinson and McCarty, 1959
Robinson, 1962
Milligan and Jacox, 1965


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 Sym. stretch 3325 gas AB Dressler and Ramsay, 1959
2 Bend 1157.8 gas AB EM Hadj Bachir, Huet, et al., 1999

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 Sym. stretch 3219.37 gas LF EM Kroll, 1975
Vervloet and Merienne-Lafore, 1982
Amano, Bernath, et al., 1982
1 Sym. stretch 3219.37 gas LD IR Vervloet, 1988
McKellar, Vervloet, et al., 1990
1 Sym. stretch 3220 w N2 IR Milligan and Jacox, 1965
2 Bend 1497.32 gas UV LF Dressler and Ramsay, 1959
Kroll, 1975
Johns, Ramsay, et al., 1976
Vervloet, Merienne-Lafore, et al., 1978
Hills and McKellar, 1979
2 Bend 1497.32 gas LMR IR Kawaguchi, Yamada, et al., 1980
Burkholder, Howard, et al., 1988
2 Bend 1499 m N2 IR Milligan and Jacox, 1965
b2 3 Asym. stretch 3301.11 gas LD LF Amano, Bernath, et al., 1982
Vervloet, 1988
3 Asym. stretch 3301.11 gas IR McKellar, Vervloet, et al., 1990

Additional references: Jacox, 1994, page 21; Jacox, 1998, page 133; Jacox, 2003, page 18; Dixon, 1965; Halpern, Hancock, et al., 1975; Hills and McKellar, 1979, 2; Donnelly, Baronavski, et al., 1979; Jungen, Hallin, et al., 1980; Muenchausen, Hills, et al., 1985; Kanada, Yamamoto, et al., 1991; Tonooka, Yamamoto, et al., 1997; Morino and Kawaguchi, 1997; Ozeki and Saito, 1998; Muller, Klein, et al., 1999; Petrongolo, Fan, et al., 2003; Duxbury and Reid, 2007

Notes

wWeak
mMedium
oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

Go To: Top, Vibrational and/or electronic energy levels, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Gibson, Greene, et al., 1985
Gibson, S.; Greene, J.; Berkowitz, J., Photoionization of the amidogen radical, J. Chem. Phys., 1985, 83, 4319. [all data]

Dressler and Ramsay, 1959
Dressler, K.; Ramsay, D.A., The Electronic Absorption Spectra of NHFormula and NDFormula, Phil. Trans. Roy. Soc. (London) A251, 1959, 251, 1002, 553, https://doi.org/10.1098/rsta.1959.0011 . [all data]

Kroll, 1975
Kroll, M., The fluorescence spectrum of NH2 excited by a cw dye laser, J. Chem. Phys., 1975, 63, 1, 319, https://doi.org/10.1063/1.431101 . [all data]

Johns, Ramsay, et al., 1976
Johns, J.W.C.; Ramsay, D.A.; Ross, S.C., The absorption spectrum of NH, Can. J. Phys., 1976, 54, 17, 1804, https://doi.org/10.1139/p76-213 . [all data]

Vervloet, 1988
Vervloet, M., Study of the electronic ground state of NH, Mol. Phys., 1988, 63, 3, 433, https://doi.org/10.1080/00268978800100311 . [all data]

Ross, Birss, et al., 1988
Ross, S.C.; Birss, F.W.; Vervloet, M.; Ramsay, D.A., The absorption spectrum of NH2 in the region 5300 to 6800 Å, J. Mol. Spectrosc., 1988, 129, 2, 436, https://doi.org/10.1016/0022-2852(88)90048-3 . [all data]

Dixon, Irving, et al., 1991
Dixon, R.N.; Irving, S.J.; Nightingale, J.R.; Vervloet, M., J. Chem. Soc., 1991, Faraday Trans. 87, 2121. [all data]

Schleipen, ter Meulen, et al., 1992
Schleipen, J.; ter Meulen, J.J.; Nemes, L.; Vervloet, M., New vibronic states of NH2 observed in ammonia photolysis, Chem. Phys. Lett., 1992, 197, 1-2, 165, https://doi.org/10.1016/0009-2614(92)86041-F . [all data]

Hadj Bachir, Huet, et al., 1999
Hadj Bachir, I.; Huet, T.R.; Destombes, J.-L.; Vervloet, M., A Combined Analysis of Laser Optogalvanic and Fourier Transform Emission Spectra of NH2near its Barrier to Linearity, J. Mol. Spectrosc., 1999, 193, 2, 326, https://doi.org/10.1006/jmsp.1998.7752 . [all data]

Loomis, Reid, et al., 2000
Loomis, R.A.; Reid, J.P.; Leone, S.R., Photofragmentation of ammonia at 193.3 nm: Bimodal rotational distributions and vibrational excitation of NH[sub 2](A), J. Chem. Phys., 2000, 112, 2, 658, https://doi.org/10.1063/1.480677 . [all data]

Xin, Fan, et al., 2003
Xin, J.; Fan, H.; Ionescu, I.; Annesley, C.; Reid, S.A., Fluorescence excitation spectroscopy of the system of jet-cooled NH2 in the region 2900--4300Å, J. Mol. Spectrosc., 2003, 219, 1, 37, https://doi.org/10.1016/S0022-2852(03)00008-0 . [all data]

Blindauer, Peric, et al., 1993
Blindauer, C.; Peric, M.; Schurath, U., The Visible Absorption Spectrum of Matrix-Isolated NH2 and Its Deuterides - Comparison with Calculated Spectroscopic Properties, J. Mol. Spectrosc., 1993, 158, 1, 177, https://doi.org/10.1006/jmsp.1993.1065 . [all data]

Robinson and McCarty, 1959
Robinson, G.W.; McCarty, M., Jr., Trapped NH2 Radicals at 4.2°K, J. Chem. Phys., 1959, 30, 4, 999, https://doi.org/10.1063/1.1730143 . [all data]

Robinson, 1962
Robinson, G.W., Free Radicals in Inorganic Chemistry, Advan. Chem. Ser. 36, Amer. Chem. Soc., 1962. [all data]

Milligan and Jacox, 1965
Milligan, D.E.; Jacox, M.E., Matrix-Isolation Infrared Spectrum of the Free Radical NH2, J. Chem. Phys., 1965, 43, 12, 4487, https://doi.org/10.1063/1.1696721 . [all data]

Vervloet and Merienne-Lafore, 1982
Vervloet, M.; Merienne-Lafore, M.F., Constantes moléculaires de de NH, Can. J. Phys., 1982, 60, 1, 49, https://doi.org/10.1139/p82-007 . [all data]

Amano, Bernath, et al., 1982
Amano, T.; Bernath, P.F.; McKellar, A.R.W., Direct observation of the «nu»1 and «nu»3 fundamental bands of NH2 by difference frequency laser spectroscopy, J. Mol. Spectrosc., 1982, 94, 1, 100, https://doi.org/10.1016/0022-2852(82)90297-1 . [all data]

McKellar, Vervloet, et al., 1990
McKellar, A.R.W.; Vervloet, M.; Burkholder, J.B.; Howard, C.J., A combined analysis of the «nu»1, «nu»3, and 2«nu»2 vibrational states of the NH2 radical using Fourier transform absorption and emission data, J. Mol. Spectrosc., 1990, 142, 2, 319, https://doi.org/10.1016/0022-2852(90)90186-T . [all data]

Vervloet, Merienne-Lafore, et al., 1978
Vervloet, M.; Merienne-Lafore, M.F.; Ramsay, D.A., Molecular constants for the 010 level of the 2B1 ground state of NH2, Chem. Phys. Lett., 1978, 57, 1, 5, https://doi.org/10.1016/0009-2614(78)80340-6 . [all data]

Hills and McKellar, 1979
Hills, G.W.; McKellar, A.R.W., Laser magnetic resonance spectra of NH2 in the 9-«mu»m region, J. Mol. Spectrosc., 1979, 74, 2, 224, https://doi.org/10.1016/0022-2852(79)90053-5 . [all data]

Kawaguchi, Yamada, et al., 1980
Kawaguchi, K.; Yamada, C.; Hirota, E.; Brown, J.M.; Buttenshaw, J.; Parent, C.R.; Sears, T.J., The laser magnetic resonance spectrum of the «nu»2 band of NH2, J. Mol. Spectrosc., 1980, 81, 1, 60, https://doi.org/10.1016/0022-2852(80)90329-X . [all data]

Burkholder, Howard, et al., 1988
Burkholder, J.B.; Howard, C.J.; McKellar, A.R.W., Fourier transform infrared spectrum of the «nu»2 band of the NH2 radical, J. Mol. Spectrosc., 1988, 127, 2, 415, https://doi.org/10.1016/0022-2852(88)90131-2 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Dixon, 1965
Dixon, R.N., The Renner effect in nearly linear molecule, with application to NH, Mol. Phys., 1965, 9, 4, 357, https://doi.org/10.1080/00268976500100491 . [all data]

Halpern, Hancock, et al., 1975
Halpern, J.B.; Hancock, G.; Lenzi, M.; Welge, K.H., Laser induced fluorescence from NH2(2A1). State selected radiative lifetimes and collisional de-excitation rates, J. Chem. Phys., 1975, 63, 11, 4808, https://doi.org/10.1063/1.431223 . [all data]

Hills and McKellar, 1979, 2
Hills, G.W.; McKellar, A.R.W., Laser magnetic resonance spectrum of the «nu»2 band of ND2, J. Chem. Phys., 1979, 71, 8, 3330, https://doi.org/10.1063/1.438775 . [all data]

Donnelly, Baronavski, et al., 1979
Donnelly, V.M.; Baronavski, A.P.; McDonald, J.R., Excited state dynamics and bimolecular quenching processes for NH2(Ã2A1), Chem. Phys., 1979, 43, 2, 283, https://doi.org/10.1016/0301-0104(79)85195-2 . [all data]

Jungen, Hallin, et al., 1980
Jungen, Ch.; Hallin, K-E.J.; Merer, A.J., Mol. Phys., 1980, 40, 25, 65. [all data]

Muenchausen, Hills, et al., 1985
Muenchausen, R.E.; Hills, G.W.; Merienne-Lafore, M.F.; Ramsay, D.A.; Vervloet, M.; Birss, F.W., Further studies of the electronic and vibrational spectra of ND2, J. Mol. Spectrosc., 1985, 112, 1, 203, https://doi.org/10.1016/0022-2852(85)90204-8 . [all data]

Kanada, Yamamoto, et al., 1991
Kanada, M.; Yamamoto, S.; Saito, S., The microwave spectrum of the ND2 radical, J. Chem. Phys., 1991, 94, 5, 3423, https://doi.org/10.1063/1.460706 . [all data]

Tonooka, Yamamoto, et al., 1997
Tonooka, M.; Yamamoto, S.; Kobayashi, K.; Saito, S., The microwave spectrum of the NH2 radical: The hyperfine structure of the 2B1 ground electronic state, J. Chem. Phys., 1997, 106, 7, 2563, https://doi.org/10.1063/1.473360 . [all data]

Morino and Kawaguchi, 1997
Morino, I.; Kawaguchi, K., Fourier Transform Far-Infrared Spectroscopy of the NH2, NHD, and ND2Radicals, J. Mol. Spectrosc., 1997, 182, 2, 428, https://doi.org/10.1006/jmsp.1996.7221 . [all data]

Ozeki and Saito, 1998
Ozeki, H.; Saito, S., Far-Infrared Laser Sideband Spectroscopy of the NH2Radical, J. Mol. Spectrosc., 1998, 192, 1, 183, https://doi.org/10.1006/jmsp.1998.7678 . [all data]

Muller, Klein, et al., 1999
Muller, H.S.P.; Klein, H.; Belov, S.P.; Winnewisser, G.; Morino, I.; Yamada, K.M.T.; Saito, S., Terahertz Spectroscopy of the Amidogen Radical, NH2, J. Mol. Spectrosc., 1999, 195, 1, 177, https://doi.org/10.1006/jmsp.1999.7820 . [all data]

Petrongolo, Fan, et al., 2003
Petrongolo, C.; Fan, H.; Ionescu, I.; Kuffel, D.; Reid, S.A., Fluorescence spectra of NH[sub 2] X [sup 2]B[sub 1]<--A [sup 2]A[sub 1] «SIGMA» bands: Experiment and theory, J. Chem. Phys., 2003, 119, 5, 2614, https://doi.org/10.1063/1.1580112 . [all data]

Duxbury and Reid, 2007
Duxbury, G.; Reid, J.P., Renner--Teller interaction, high angular momentum states and spin-orbit interaction in the electronic spectrum of ND, Mol. Phys., 2007, 105, 11-12, 1603, https://doi.org/10.1080/00268970701384480 . [all data]


Notes

Go To: Top, Vibrational and/or electronic energy levels, References