CH2F2+
- Formula: CH2F2+
- Molecular weight: 52.0228
- CAS Registry Number: 66177-07-9
- Information on this page:
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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: G
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 83900 ± 1000 | gas | Potts, Lempka, et al., 1970 | |||||
Brundle, Robin, et al., 1970 | |||||||
State: F
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 44706 ± 35 | gas | Potts, Lempka, et al., 1970 | |||||
Pullen, Carlson, et al., 1970 | |||||||
Brundle, Robin, et al., 1970 | |||||||
Pradeep and Shirley, 1993 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 3 | CF2 stretch | 708 | gas | PE | Pradeep and Shirley, 1993 | |
State: E
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 44432 ± 35 | gas | Potts, Lempka, et al., 1970 | |||||
Pullen, Carlson, et al., 1970 | |||||||
Brundle, Robin, et al., 1970 | |||||||
Pradeep and Shirley, 1993 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 3 | CF2 stretch | 668 | gas | PE | Pradeep and Shirley, 1993 | |
State: D
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 44206 ± 35 | gas | Potts, Lempka, et al., 1970 | |||||
Pullen, Carlson, et al., 1970 | |||||||
Brundle, Robin, et al., 1970 | |||||||
Pradeep and Shirley, 1993 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 3 | CF2 stretch | 711 ± 5 | gas | PE | Potts, Lempka, et al., 1970 Pullen, Carlson, et al., 1970 Brundle, Robin, et al., 1970 Pradeep and Shirley, 1993 | |
State: C
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 23358 ± 35 | gas | Potts, Lempka, et al., 1970 | |||||
Pullen, Carlson, et al., 1970 | |||||||
Brundle, Robin, et al., 1970 | |||||||
Pradeep and Shirley, 1993 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 3 | CF2 stretch | 1050 ± 5 | gas | PE | Potts, Lempka, et al., 1970 Pullen, Carlson, et al., 1970 Brundle, Robin, et al., 1970 Pradeep and Shirley, 1993 | |
4 | CF2 scissors | 500 ± 80 | gas | PE | Potts, Lempka, et al., 1970 Brundle, Robin, et al., 1970 | ||
State: B
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 22938 ± 35 | gas | Pradeep and Shirley, 1993 | |||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 3 | CF2 stretch | 1054 ± 5 | gas | PE | Pradeep and Shirley, 1993 | |
State: A
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 15185 ± 35 | gas | Potts, Lempka, et al., 1970 | |||||
Pullen, Carlson, et al., 1970 | |||||||
Brundle, Robin, et al., 1970 | |||||||
Pradeep and Shirley, 1993 | |||||||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | CH stretch | 2744 | w | Ar | IR | Andrews and Prochaska, 1979 |
2 | CH2 scissors | 1150 ± 5 | gas | PE | Potts, Lempka, et al., 1970 Pullen, Carlson, et al., 1970 Brundle, Robin, et al., 1970 Pradeep and Shirley, 1993 | ||
3 | CF2 stretch | 1162 ± 5 | gas | PE | Pradeep and Shirley, 1993 | ||
4 | CF2 scissors | 527 | H | gas | PE | Pradeep and Shirley, 1993 | |
b1 | 6 | CH stretch | 2854 | w m | Ar | IR | Andrews and Prochaska, 1979 |
b2 | 8 | CH2 wag | 1408 | s | Ar | IR | Andrews and Prochaska, 1979 |
9 | CF stretch | 1255 | vs | Ar | IR | Andrews and Prochaska, 1979 | |
Additional references: Jacox, 1994, page 260; Jacox, 1998, page 284
Notes
w | Weak |
m | Medium |
s | Strong |
vs | Very strong |
H | (1/2)(2ν) |
o | Energy 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.
Potts, Lempka, et al., 1970
Potts, A.W.; Lempka, H.J.; Streets, D.G.; Price, W.C.,
Photoelectron spectra of the halides of elements in groups III, IV, V and VI,
Phil. Trans. Roy. Soc. (London), 1970, A268, 59. [all data]
Brundle, Robin, et al., 1970
Brundle, C.R.; Robin, M.B.; Basch, H.,
Electronic energies and electronic structures of the fluoromethanes,
J. Chem. Phys., 1970, 53, 2196. [all data]
Pullen, Carlson, et al., 1970
Pullen, B.P.; Carlson, T.A.; Moddeman, W.E.; Schweitzer, G.K.; Bull, W.E.,
Photoelectron spectra of methane, silane, germane, methyl fluoride, difluoromethane, and trifluoromethane,
J. Chem. Phys., 1970, 53, 768. [all data]
Pradeep and Shirley, 1993
Pradeep, T.; Shirley, D.A.,
High resolution photoelectron spectroscopy of CH2F2, CH2Cl2 and CF2Cl2 using supersonic molecular beams,
J. Electron Spectrosc. Relat. Phenom., 1993, 66, 1-2, 125, https://doi.org/10.1016/0368-2048(93)01831-X
. [all data]
Andrews and Prochaska, 1979
Andrews, L.; Prochaska, F.T.,
Infrared spectra of the CH2F2+, CHF2+, CHF+, and FH-- (CHF)- molecular ions in solid argon,
J. Chem. Phys., 1979, 70, 10, 4714, https://doi.org/10.1063/1.437259
. [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]
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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