Formyl cation
- Formula: CHO+
- Molecular weight: 29.0175
- IUPAC Standard InChIKey: XPRMKTHGXOVKEH-UHFFFAOYSA-N
- CAS Registry Number: 17030-74-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Formyl, unipositive ion; Methylium, oxo-; HCO; HCO+
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Vibrational and/or electronic energy levels
Go To: Top, References, Notes
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: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
Σ+ | 1 | CH stretch | 3088.74 | gas | LD CC | Gudeman, Begemann, et al., 1983 Amano, 1983 Owrutsky, Keim, et al., 1989 Keim, Polak, et al., 1990 | |
1 | CH stretch | 3076.31 | H | gas | PF | Nizkorodov, Maier, et al., 1995 | |
1 | CH stretch | 3046.12 | gas | PF | Nizkorodov, Dopfer, et al., 1996 | ||
1 | CH stretch | 2815.06 | A | gas | PF | Nizkorodov, Dopfer, et al., 1995 | |
1 | CH stretch | 2840 | H | gas | PF | Bieske, Nizkorodov, et al., 1995 | |
Π | 2 | Bend | 829.72 | gas | DL MPI | Davies and Rothwell, 1984 Kawaguchi, Yamada, et al., 1985 Foltynowicz, Robinson, et al., 2000 | |
Σ+ | 3 | CO stretch | 2183.95 | gas | DL | Foster, McKellar, et al., 1984 Davies, Hamilton, et al., 1984 Liu, Lee, et al., 1988 | |
3 | CO stretch | 2135.71 | A | gas | DL | Linnartz, Speck, et al., 1998 | |
Additional references: Jacox, 1994, page 37; Jacox, 1998, page 145; Jacox, 2003, page 33; Dyke, Jonathan, et al., 1980; Bogey, Demuynck, et al., 1981; Sastry, Herbst, et al., 1981; Woods, Saykally, et al., 1981; Foster and McKellar, 1984; Kawaguchi, McKellar, et al., 1986; Dyke, 1987; Woods, 1988; Ohshima, Sumiyoshi, et al., 1997; Olkhov, Nizkorodov, et al., 1997; Foltynowicz, Robinson, et al., 2001; Foltynowicz, Robinson, et al., 2001, 2; Dore, Beninati, et al., 2003
Notes
H | (1/2)(2ν) |
A | 0~1 cm-1 uncertainty |
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.
Gudeman, Begemann, et al., 1983
Gudeman, C.S.; Begemann, M.H.; Pfaff, J.; Saykally, R.J.,
Velocity-Modulated Infrared Laser Spectroscopy of Molecular Ions: The ν_{1} Band of HCO^{+},
Phys. Rev. Lett., 1983, 50, 10, 727, https://doi.org/10.1103/PhysRevLett.50.727
. [all data]
Amano, 1983
Amano, T.,
The ν1 fundamental band of HCO+ by difference frequency laser spectroscopy,
J. Chem. Phys., 1983, 79, 7, 3595, https://doi.org/10.1063/1.446216
. [all data]
Owrutsky, Keim, et al., 1989
Owrutsky, J.C.; Keim, E.R.; Coe, J.V.; Saykally, R.J.,
Absolute IR intensities of the .nu.1 bands of hydrodinitrogen(1+) and oxomethylium determined by direct laser absorption spectroscopy in fast ion beams,
J. Phys. Chem., 1989, 93, 16, 5960, https://doi.org/10.1021/j100353a003
. [all data]
Keim, Polak, et al., 1990
Keim, E.R.; Polak, M.L.; Owrutsky, J.C.; Coe, J.V.; Saykally, R.J.,
Absolute infrared vibrational band intensities of molecular ions determined by direct laser absorption spectroscopy in fast ion beams,
J. Chem. Phys., 1990, 93, 5, 3111, https://doi.org/10.1063/1.458845
. [all data]
Nizkorodov, Maier, et al., 1995
Nizkorodov, S.A.; Maier, J.P.; Bieske, E.J.,
The infrared spectrum of He--HCO+,
J. Chem. Phys., 1995, 103, 4, 1297, https://doi.org/10.1063/1.469806
. [all data]
Nizkorodov, Dopfer, et al., 1996
Nizkorodov, S.A.; Dopfer, O.; Meuwly, M.; Maier, J.P.; Bieske, E.J.,
Mid-infrared spectra of the proton-bound complexes Nen--HCO+ (n=1,2),
J. Chem. Phys., 1996, 105, 5, 1770, https://doi.org/10.1063/1.472052
. [all data]
Nizkorodov, Dopfer, et al., 1995
Nizkorodov, S.A.; Dopfer, O.; Ruchti, T.; Meuwly, M.; Maier, J.P.; Bieske, E.J.,
Size Effects in Cluster Infrared Spectra: the .nu.1 Band of Arn-HCO+ (n = 1-13),
J. Phys. Chem., 1995, 99, 47, 17118, https://doi.org/10.1021/j100047a013
. [all data]
Bieske, Nizkorodov, et al., 1995
Bieske, E.J.; Nizkorodov, S.A.; Bennett, F.R.; Maier, J.P.,
The infrared spectrum of the H2--HCO+ complex,
J. Chem. Phys., 1995, 102, 13, 5152, https://doi.org/10.1063/1.469240
. [all data]
Davies and Rothwell, 1984
Davies, P.B.; Rothwell, W.J.,
Diode laser detection of the bending mode of HCO+,
J. Chem. Phys., 1984, 81, 12, 5239, https://doi.org/10.1063/1.447688
. [all data]
Kawaguchi, Yamada, et al., 1985
Kawaguchi, K.; Yamada, C.; Saito, S.; Hirota, E.,
Magnetic field modulated infrared laser spectroscopy of molecular ions: The ν2 band of HCO+,
J. Chem. Phys., 1985, 82, 4, 1750, https://doi.org/10.1063/1.448407
. [all data]
Foltynowicz, Robinson, et al., 2000
Foltynowicz, R.J.; Robinson, J.D.; Zuckerman, E.J.; Hedderich, H.G.; Grant, E.R.,
Experimental Characterization of the Higher Vibrationally Excited States of HCO+: Determination of ω2, x22, g22, and B(030),
J. Mol. Spectrosc., 2000, 199, 2, 147, https://doi.org/10.1006/jmsp.1999.8014
. [all data]
Foster, McKellar, et al., 1984
Foster, S.C.; McKellar, A.R.W.; Sears, T.J.,
Observation of the ν3 fundamental band of HCO+,
J. Chem. Phys., 1984, 81, 1, 578, https://doi.org/10.1063/1.447344
. [all data]
Davies, Hamilton, et al., 1984
Davies, P.B.; Hamilton, P.A.; Rothwell, W.J.,
Infrared laser spectroscopy of the ν3 fundamental of HCO+,
J. Chem. Phys., 1984, 81, 4, 1598, https://doi.org/10.1063/1.447889
. [all data]
Liu, Lee, et al., 1988
Liu, D.-J.; Lee, S.-T.; Oka, T.,
The ν3 fundamental band of HCNH+ and the 2ν3 ← ν3 and ν2 + ν3 ← ν2 hot bands of HCO+,
J. Mol. Spectrosc., 1988, 128, 1, 236, https://doi.org/10.1016/0022-2852(88)90221-4
. [all data]
Linnartz, Speck, et al., 1998
Linnartz, H.; Speck, T.; Maier, J.P.,
High-resolution infrared spectrum of the ν3 band in Ar--HCO+,
Chem. Phys. Lett., 1998, 288, 2-4, 504, https://doi.org/10.1016/S0009-2614(98)00304-2
. [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]
Dyke, Jonathan, et al., 1980
Dyke, J.M.; Jonathan, N.B.H.; Morris, A.; Winter, M.J.,
The first ionization potential of the formyl radical, HCO(X2A'), studied using photoelectron spectroscopy,
Mol. Phys., 1980, 39, 629. [all data]
Bogey, Demuynck, et al., 1981
Bogey, M.; Demuynck, C.; Destombes, J.L.,
Centrifugal distortion effects in HCO,
Mol. Phys., 1981, 43, 5, 1043, https://doi.org/10.1080/00268978100101861
. [all data]
Sastry, Herbst, et al., 1981
Sastry, K.V.L.N.; Herbst, E.; De Lucia, F.C.,
Millimeter and submillimeter spectra of HCO+ and DCO+,
J. Chem. Phys., 1981, 75, 8, 4169, https://doi.org/10.1063/1.442513
. [all data]
Woods, Saykally, et al., 1981
Woods, R.C.; Saykally, R.J.; Anderson, T.G.; Dixon, T.A.; Szanto, P.G.,
The molecular structure of HCO+ by the microwave substitution method,
J. Chem. Phys., 1981, 75, 9, 4256, https://doi.org/10.1063/1.442627
. [all data]
Foster and McKellar, 1984
Foster, S.C.; McKellar, A.R.W.,
The ν3 fundamental bands of HN+2, DN+2, and DCO+,
J. Chem. Phys., 1984, 81, 8, 3424, https://doi.org/10.1063/1.448066
. [all data]
Kawaguchi, McKellar, et al., 1986
Kawaguchi, K.; McKellar, A.R.W.; Hirota, E.,
Magnetic field modulated infrared laser spectroscopy of molecular ions: The ν1 band of DCO+,
J. Chem. Phys., 1986, 84, 3, 1146, https://doi.org/10.1063/1.450503
. [all data]
Dyke, 1987
Dyke, J.M.,
J. Chem. Soc., 1987, Faraday Trans. 2 83, 69. [all data]
Woods, 1988
Woods, R.C.,
Microwave Spectroscopy of Molecular Ions in the Laboratory and in Space [and Discussion],
Phil. Trans. Roy. Soc. (London) A324, 1988, 324, 1578, 141, https://doi.org/10.1098/rsta.1988.0007
. [all data]
Ohshima, Sumiyoshi, et al., 1997
Ohshima, Y.; Sumiyoshi, Y.; Endo, Y.,
Rotational spectrum of the Ar--HCO+ ionic complex,
J. Chem. Phys., 1997, 106, 7, 2977, https://doi.org/10.1063/1.473416
. [all data]
Olkhov, Nizkorodov, et al., 1997
Olkhov, R.V.; Nizkorodov, S.A.; Dopfer, O.,
Hindered rotation in ion-neutral molecular complexes: The ν[sub 1] vibration of H[sub 2]--HCO[sup +] and D[sub 2]--DCO[sup +],
J. Chem. Phys., 1997, 107, 20, 8229, https://doi.org/10.1063/1.475027
. [all data]
Foltynowicz, Robinson, et al., 2001
Foltynowicz, R.J.; Robinson, J.D.; Grant, E.R.,
Double-resonant photoionization efficiency spectroscopy: A precise determination of the adiabatic ionization potential of DCO,
J. Chem. Phys., 2001, 114, 12, 5224, https://doi.org/10.1063/1.1349080
. [all data]
Foltynowicz, Robinson, et al., 2001, 2
Foltynowicz, R.J.; Robinson, J.D.; Grant, E.R.,
An experimental measure of anharmonicity in the bending of DCO[sup +],
J. Chem. Phys., 2001, 115, 2, 878, https://doi.org/10.1063/1.1379336
. [all data]
Dore, Beninati, et al., 2003
Dore, L.; Beninati, S.; Puzzarini, C.; Cazzoli, G.,
Study of vibrational interactions in DCO[sup +] by millimeter-wave spectroscopy and determination of the equilibrium structure of the formyl ion,
J. Chem. Phys., 2003, 118, 17, 7857, https://doi.org/10.1063/1.1564042
. [all data]
Notes
Go To: Top, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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