Methylene
- Formula: CH2
- Molecular weight: 14.0266
- IUPAC Standard InChIKey: HZVOZRGWRWCICA-UHFFFAOYSA-N
- CAS Registry Number: 2465-56-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Reaction thermochemistry data
Go To: Top, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
RCD - Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
(CAS Reg. No. 60291-30-7 • 4294967295) + = CAS Reg. No. 60291-30-7
By formula: (CAS Reg. No. 60291-30-7 • 4294967295CH2) + CH2 = CAS Reg. No. 60291-30-7
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 21.1 ± 1.6 | kcal/mol | CIDT | Poutsma, Nash, et al., 1997 | gas phase; B |
ΔrH° | 21.8 ± 3.0 | kcal/mol | Ther | Hierl, Henchman, et al., 1992 | gas phase; HO- + MeBr:6.0±2.3 kcal/mol endo. "Better than Ingemann and Nibbering, 19852" 2.0 kcal would not show barrier; B |
ΔrH° | 24.4 ± 6.4 | kcal/mol | Ther | Ingemann and Nibbering, 1985, 2 | gas phase; B |
(CAS Reg. No. 60291-29-4 • 4294967295) + = CAS Reg. No. 60291-29-4
By formula: (CAS Reg. No. 60291-29-4 • 4294967295CH2) + CH2 = CAS Reg. No. 60291-29-4
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 28.4 ± 3.2 | kcal/mol | N/A | Ingemann and Nibbering, 1985, 2 | gas phase; B |
ΔrH° | 23.1 ± 2.9 | kcal/mol | CIDT | Poutsma, Nash, et al., 1997 | gas phase; B |
CH- + =
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 386.05 ± 0.44 | kcal/mol | D-EA | Kasdan, Herbst, et al., 1975 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 379.29 ± 0.53 | kcal/mol | H-TS | Kasdan, Herbst, et al., 1975 | gas phase; B |
By formula: (CH3- • 4294967295CH2) + CH2 = CH3-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 94.98 ± 0.80 | kcal/mol | N/A | Ellison, Engelking, et al., 1978 | gas phase; B |
By formula: La+ + CH2 = (La+ • CH2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 98.2 ± 1.4 | kcal/mol | CIDT | Sunderlin and Armentrout, 1989 | RCD |
By formula: Sc+ + CH2 = (Sc+ • CH2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 98.3 ± 5.3 | kcal/mol | CIDT | Sunderlin and Armentrout, 1989 | RCD |
By formula: Y+ + CH2 = (Y+ • CH2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 95.2 ± 3.0 | kcal/mol | CIDT | Sunderlin and Armentrout, 1989 | RCD |
By formula: Co+ + CH2 = (Co+ • CH2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 75.9 ± 1.2 | kcal/mol | CIDT | Haynes and Armentrout, 1994 | RCD |
By formula: Cr+ + CH2 = (Cr+ • CH2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 53.8 ± 1.9 | kcal/mol | CIDT | Georgiadis and Armentrout, 1989 | RCD |
Vibrational and/or electronic energy levels
Go To: Top, Reaction thermochemistry data, 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: 4p
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 74254 | gas | Irikura, Johnson, et al., 1992 | |||||
State: D
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 71592 | gas | D-X | 140 | 140 | Herzberg, 1961 | ||
Irikura and Hudgens, 1992 | |||||||
State: C
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 70917 | gas | C-X | 141 | 141 | Herzberg, 1961 | ||
Irikura and Hudgens, 1992 | |||||||
State: 3d 3A2
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 70634 | gas | 3d3A2-X | 142 | 142 | Herzberg, 1961 | ||
Irikura and Hudgens, 1992 | |||||||
State: 3p
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 64126 | gas | Irikura, Johnson, et al., 1992 | |||||
State: c
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
gas | c-a | 330 | 362 | Herzberg and Johns, 1966 | |||
Kim, Komissarov, et al., 2005 | |||||||
Kim, Hall, et al., 2006 | |||||||
State: b
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 2 | Bend | 570 | T | gas | AB | Herzberg and Johns, 1966 |
State: a
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | CH s-stretch | 2806.01 ± 0.07 | gas | LF LD | Feldman, Meier, et al., 1978 Petek, Nesbitt, et al., 1983 Hartland, Qin, et al., 1993 | |
1 | CH s-stretch | 2806.01 ± 0.07 | gas | IR | Petek, Nesbitt, et al., 1989 | ||
2 | Bend | 1352.6 | gas | AB LF | Herzberg and Johns, 1966 Petek, Nesbitt, et al., 1987 Petek, Nesbitt, et al., 1987, 2 Hartland, Qin, et al., 1993 | ||
b2 | 3 | CH a-stretch | 2864.97 ± 0.02 | gas | LD IR | Petek, Nesbitt, et al., 1983 Petek, Nesbitt, et al., 1989 | |
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 2 | Bend | 963.10 | gas | LMR DL | Sears, Bunker, et al., 1981 Sears, Bunker, et al., 1982 McKellar, Yamada, et al., 1983 Marshall and McKellar, 1986 | |
b2 | 3 | CH2 a-stretch | 3190 ± 5 | gas | IR | Petek, Nesbitt, et al., 1989 | |
Additional references: Jacox, 1994, page 18; Jacox, 1998, page 130; Jacox, 2003, page 16; Herzberg, 1961, 2; Bernheim, Bernard, et al., 1970; Wasserman, Yager, et al., 1970; Wasserman, Kuck, et al., 1970; Herzberg and Johns, 1971; Mohlmann and DeHeer, 1976; Grimley and Stephenson, 1981; Ashfold, Fullstone, et al., 1982; Duxbury, 1982; Sears, Bunker, et al., 1982, 2; Jensen, Bunker, et al., 1982; Bunker, Sears, et al., 1983; Evenson, Sears, et al., 1984; Duxbury, 1988; Alijah and Duxbury, 1990; Garcia-Moreno, Lovejoy, et al., 1993; Xie and Dai, 1993; Ozeki and Saito, 1996; Michael, Lewen, et al., 2003; Brunken, Michael, et al., 2004; Brunken, Muller, et al., 2005
Notes
T | Tentative assignment or approximate value |
o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, Reaction thermochemistry data, 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.
Poutsma, Nash, et al., 1997
Poutsma, J.C.; Nash, J.J.; Paulino, J.A.; Squires, R.R.,
Absolute Heats of Formation of Phenylcarbene and Vinylcarbene,
J. Am. Chem. Soc., 1997, 119, 20, 4686, https://doi.org/10.1021/ja963918s
. [all data]
Hierl, Henchman, et al., 1992
Hierl, P.M.; Henchman, M.J.; Paulson, J.F.,
Threshold Energies for the Reactions HO- + MeX - MeOH + X- measured by Tandem Mass Spectrometry: Acidities of MeCl and MeBr,
Int. J. Mass Spectrom. Ion Proc., 1992, 117, 475, https://doi.org/10.1016/0168-1176(92)80109-E
. [all data]
Ingemann and Nibbering, 1985
Ingemann, S.; Nibbering, N.M.M.,
Gas phase chemistry of alpha-thio carbanions,
Can. J. Chem., 1985, 62, 2273. [all data]
Ingemann and Nibbering, 1985, 2
Ingemann, S.; Nibbering, N.M.M.,
Gas-phase acidity of CH3X [X = P(CH3)2, SCH3, F, Cl, Br, I] compounds,
J. Chem. Soc. Perkin Trans. 2, 1985, 837. [all data]
Kasdan, Herbst, et al., 1975
Kasdan, A.; Herbst, E.; Lineberger, W.C.,
Laser photoelectron spectrometry of CH2-,
Chem. Phys. Lett., 1975, 31, 78. [all data]
Ellison, Engelking, et al., 1978
Ellison, G.B.; Engelking, P.C.; Lineberger, W.C.,
An experimental determination of the geometry and electron affinity of CH3,
J. Am. Chem. Soc., 1978, 100, 2556. [all data]
Sunderlin and Armentrout, 1989
Sunderlin, L.S.; Armentrout, P.B.,
Periodic Trends in Chemical Reactivity: Reactions of Sc+, Y+, La+, and Lu+ with Methane and Ethane,
J. Am. Chem. Soc., 1989, 111, 11, 3845, https://doi.org/10.1021/ja00193a015
. [all data]
Haynes and Armentrout, 1994
Haynes, C.L.; Armentrout, P.B.,
Thermochemistry and Structures of CoC3H6+: Metallacyclic and Metal-Alkene Isomers,
Organomettalics, 1994, 13, 9, 3480, https://doi.org/10.1021/om00021a022
. [all data]
Georgiadis and Armentrout, 1989
Georgiadis, R.; Armentrout, P.B.,
Reactions of Ground State Cr+ with C2H6, C2H4, cyclo-C3H6, and cyclo-C2H4O: Bond Energies for CrCHn+ (n= 1-3),
Int. J. Mass Spectrom. Ion Proc., 1989, 89, 2-3, 227, https://doi.org/10.1016/0168-1176(89)83062-9
. [all data]
Irikura, Johnson, et al., 1992
Irikura, K.K.; Johnson, R.D., III; Hudgens, J.W.,
Two new electronic states of methylene,
J. Phys. Chem., 1992, 96, 15, 6131, https://doi.org/10.1021/j100194a010
. [all data]
Herzberg, 1961
Herzberg, G.,
The Bakerian Lecture. The Spectra and Structures of Free Methyl and Free Methylene,
Proc. Roy. Soc. (London) A262, 1961, 262, 1310, 291, https://doi.org/10.1098/rspa.1961.0120
. [all data]
Irikura and Hudgens, 1992
Irikura, K.K.; Hudgens, J.W.,
Detection of methylene (~X 3B1) radicals by 3 + 1 resonance-enhanced multiphoton ionization spectroscopy,
J. Phys. Chem., 1992, 96, 2, 518, https://doi.org/10.1021/j100181a006
. [all data]
Herzberg and Johns, 1966
Herzberg, G.; Johns, J.W.C.,
The Spectrum and Structure of Singlet CH$_2$,
Proc. Roy. Soc.(London) A295, 1966, 295, 1441, 107, https://doi.org/10.1098/rspa.1966.0229
. [all data]
Kim, Komissarov, et al., 2005
Kim, Y.; Komissarov, A.V.; Hall, G.E.; Sears, T.J.,
Observation of the c [sup 1]A[sub 1] state of methylene by optical-optical double resonance,
J. Chem. Phys., 2005, 123, 2, 024306, https://doi.org/10.1063/1.1988289
. [all data]
Kim, Hall, et al., 2006
Kim, Y.; Hall, G.E.; Sears, T.J.,
Observation of the state of CH2 by optical--optical double resonance,
J. Mol. Spectrosc., 2006, 240, 2, 269, https://doi.org/10.1016/j.jms.2006.10.008
. [all data]
McKellar, Bunker, et al., 1983
McKellar, A.R.W.; Bunker, P.R.; Sears, T.J.; Evenson, K.M.; Saykally, R.J.; Langhoff, S.R.,
Far infrared laser magnetic resonance of singlet methylene: Singlet--triplet perturbations, singlet--triplet transitions, and the singlet--triplet splittinga),
J. Chem. Phys., 1983, 79, 11, 5251, https://doi.org/10.1063/1.445713
. [all data]
Petek, Nesbitt, et al., 1987
Petek, H.; Nesbitt, D.J.; Darwin, D.C.; Moore, C.B.,
Visible absorption and magnetic-rotation spectroscopy of 1CH2: The analysis of the b 1B1 state,
J. Chem. Phys., 1987, 86, 3, 1172, https://doi.org/10.1063/1.452263
. [all data]
Green, Chen, et al., 1989
Green, W.H., Jr.; Chen, I.-C.; Bitto, H.; Guyer, D.R.; Moore, C.B.,
New vibrational bands of CH2 (),
J. Mol. Spectrosc., 1989, 138, 2, 614, https://doi.org/10.1016/0022-2852(89)90022-2
. [all data]
Hartland, Xie, et al., 1992
Hartland, G.V.; Xie, W.; Qin, D.; Dai, H-L.,
Strong asymmetry induced ΔKa=3 transitions in the CH2 b 1B1→a 1A1 spectrum: A study by Fourier transform emission spectroscopy,
J. Chem. Phys., 1992, 97, 9, 7010, https://doi.org/10.1063/1.463209
. [all data]
Hartland, Qin, et al., 1993
Hartland, G.V.; Qin, D.; Dai, H.-L.,
Fourier transform dispersed fluorescence spectroscopy: Observation of new vibrational levels in the 5000--8000 cm-1 region of a 1A1 CH2,
J. Chem. Phys., 1993, 98, 3, 2469, https://doi.org/10.1063/1.464176
. [all data]
Garcia-Moreno and Moore, 1993
Garcia-Moreno, I.; Moore, C.B.,
Spectroscopy of methylene: Einstein coefficients for CH2(b 1B1--a 1A1) transitions,
J. Chem. Phys., 1993, 99, 9, 6429, https://doi.org/10.1063/1.465882
. [all data]
Qin, Hartland, et al., 1994
Qin, D.; Hartland, G.V.; Dai, H.-L.,
A Characterization of the CH2ã1A1(1,2,0),(2,0,0),(0,5,0),(1,3,0) and b1B1(1,142,0),(0,180,0),(0,191,0) Vibronic Levels by Fourier-Transform Dispersed Fluorescence Spectroscopy,
J. Mol. Spectrosc., 1994, 168, 2, 333, https://doi.org/10.1006/jmsp.1994.1282
. [all data]
Chang, Wu, et al., 1994
Chang, B.-C.; Wu, M.; Hall, G.E.; Sears, T.J.,
Near-infrared vibronic spectrum of the CH2 b 1B1←a 1A1 transition,
J. Chem. Phys., 1994, 101, 11, 9236, https://doi.org/10.1063/1.468015
. [all data]
Fockenberg, Marr, et al., 1998
Fockenberg, C.; Marr, A.J.; Sears, T.J.; Chang, B.-C.,
Near-Infrared High Resolution Diode Laser Spectrum of the CH2←ã1A1Transition,
J. Mol. Spectrosc., 1998, 187, 2, 119, https://doi.org/10.1006/jmsp.1997.7476
. [all data]
Marr, Sears, et al., 1998
Marr, A.J.; Sears, T.J.; Chang, B.-C.,
Near-infrared spectroscopy of CH[sub 2] by frequency modulated diode laser absorption,
J. Chem. Phys., 1998, 109, 9, 3431, https://doi.org/10.1063/1.476938
. [all data]
Kobayashi, Pride, et al., 2000
Kobayashi, K.; Pride, L.D.; Sears, T.J.,
Absorption Spectroscopy of Singlet CH,
J. Phys. Chem. A, 2000, 104, 45, 10119, https://doi.org/10.1021/jp000293i
. [all data]
Kobayashi and Sears, 2001
Kobayashi, K.; Sears, T.J.,
Can. J. Phys., 2001, 79, 347. [all data]
Hall, Komissarov, et al., 2004
Hall, G.E.; Komissarov, A.V.; Sears, T.J.,
Doppler-Resolved Spectroscopy as an Assignment Tool in the Spectrum of Singlet Methylene,
J. Phys. Chem. A, 2004, 108, 39, 7922, https://doi.org/10.1021/jp0494133
. [all data]
Kobayashi, Hall, et al., 2006
Kobayashi, K.; Hall, G.E.; Sears, T.J.,
The spectrum of CH[sub 2] near 1.36 and 0.92 μm: Reevaluation of rotational level structure and perturbations in a(010),
J. Chem. Phys., 2006, 124, 18, 184320, https://doi.org/10.1063/1.2200340
. [all data]
Chang, Wang, et al., 2011
Chang, C.-H.; Wang, Z.; Hall, G.E.; Sears, T.J.; Xin, J.,
Transient laser absorption spectroscopy of CH2 near 780nm,
J. Mol. Spectrosc., 2011, 267, 1-2, 50, https://doi.org/10.1016/j.jms.2011.02.004
. [all data]
Chang, Xin, et al., 2011
Chang, C.-H.; Xin, J.; Latsha, T.; Otruba, E.; Wang, Z.; Hall, G.E.; Sears, T.J.; Chang, B.-C.,
CH,
J. Phys. Chem. A, 2011, 115, 34, 9440, https://doi.org/10.1021/jp1115965
. [all data]
Leopold, Murray, et al., 1985
Leopold, D.G.; Murray, K.K.; Miller, A.E.S.; Lineberger, W.C.,
Methylene: A study of the X3B1 and the 1A1 states by photoelectron spectroscopy of CH2- and CD2-,
J. Chem. Phys., 1985, 83, 4849. [all data]
Bunker and Sears, 1985
Bunker, P.R.; Sears, T.J.,
Analysis of the laser photoelectron spectrum of CH-2,
J. Chem. Phys., 1985, 83, 10, 4866, https://doi.org/10.1063/1.449747
. [all data]
Bunker, Jensen, et al., 1986
Bunker, P.R.; Jensen, P.; Kraemer, W.P.; Beardsworth, R.,
The potential surface of X 3B1 methylene (CH2) and the singlet--triplet splitting,
J. Chem. Phys., 1986, 85, 7, 3724, https://doi.org/10.1063/1.450944
. [all data]
Petek, Nesbitt, et al., 1987, 2
Petek, H.; Nesbitt, D.J.; Moore, C.B.; Birss, F.W.; Ramsay, D.A.,
Visible absorption and magnetic-rotation spectroscopy of 1CH2: Analysis of the 1A1 state and the 1A1--3B1 coupling,
J. Chem. Phys., 1987, 86, 3, 1189, https://doi.org/10.1063/1.452264
. [all data]
Jensen and Bunker, 1988
Jensen, P.; Bunker, P.R.,
The potential surface and stretching frequencies of X 3B1 methylene (CH2) determined from experiment using the Morse oscillator-rigid bender internal dynamics Hamiltonian,
J. Chem. Phys., 1988, 89, 3, 1327, https://doi.org/10.1063/1.455184
. [all data]
Xie, Harkin, et al., 1989
Xie, W.; Harkin, C.; Dai, H.L.; Green, W.H., Jr.; Zheng, Q.K.; Mahoney, A.J.,
Transient vibrational spectroscopy of,
J. Mol. Spectrosc., 1989, 138, 2, 596, https://doi.org/10.1016/0022-2852(89)90020-9
. [all data]
Xie, Harkin, et al., 1990
Xie, W.; Harkin, C.; Dai, H.-L.,
Bending overtones and barrier height of a 1A1 CH2 by flash photolysis stimulated emission pumping,
J. Chem. Phys., 1990, 93, 7, 4615, https://doi.org/10.1063/1.458701
. [all data]
Hartland, Qin, et al., 1995
Hartland, G.V.; Qin, D.; Dai, H.-L.,
Renner--Teller effect on the highly excited bending levels of a 1A1 CH2,
J. Chem. Phys., 1995, 102, 17, 6641, https://doi.org/10.1063/1.469136
. [all data]
Feldman, Meier, et al., 1978
Feldman, D.; Meier, K.; Schmiedl, R.; Welge, K.H.,
Laser induced fluorescence spectrum of singlet methylene. Spectroscopy of the a~1A1 state,
Chem. Phys. Lett., 1978, 60, 1, 30, https://doi.org/10.1016/0009-2614(78)85703-0
. [all data]
Petek, Nesbitt, et al., 1983
Petek, H.; Nesbitt, D.J.; Ogilby, P.R.; Moore, C.B.,
Infrared flash kinetic spectroscopy: the .nu.1 and .nu.3 spectra of singlet methylene,
J. Phys. Chem., 1983, 87, 26, 5367, https://doi.org/10.1021/j150644a012
. [all data]
Petek, Nesbitt, et al., 1989
Petek, H.; Nesbitt, D.J.; Darwin, D.C.; Ogilby, P.R.; Moore, C.B.; Ramsay, D.A.,
Analysis of CH2 a 1A1 (1,0,0) and (0,0,1) Coriolis-coupled states, a 1A1--X 3B1 spin--orbit coupling, and the equilibrium structure of CH2 a 1A1 state,
J. Chem. Phys., 1989, 91, 11, 6566, https://doi.org/10.1063/1.457375
. [all data]
Sears, Bunker, et al., 1981
Sears, T.J.; Bunker, P.R.; McKellar, A.R.W.,
Observation of the ν2 band of CH2 by laser magnetic resonance,
J. Chem. Phys., 1981, 75, 9, 4731, https://doi.org/10.1063/1.442592
. [all data]
Sears, Bunker, et al., 1982
Sears, T.J.; Bunker, P.R.; McKellar, A.R.W.,
The laser magnetic resonance spectrum of the ν2 band of the methylene radical CH2,
J. Chem. Phys., 1982, 77, 11, 5363, https://doi.org/10.1063/1.443784
. [all data]
McKellar, Yamada, et al., 1983
McKellar, A.R.W.; Yamada, C.; Hirota, E.,
Detection of the ν2 bands of CD2 and CH2 by infrared diode laser spectroscopy,
J. Chem. Phys., 1983, 79, 3, 1220, https://doi.org/10.1063/1.445926
. [all data]
Marshall and McKellar, 1986
Marshall, M.D.; McKellar, A.R.W.,
The ν2 fundamental band of triplet CH2,
J. Chem. Phys., 1986, 85, 7, 3716, https://doi.org/10.1063/1.450943
. [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]
Herzberg, 1961, 2
Herzberg, G.,
The ionization potential of CH2,
Can J. Phys., 1961, 39, 1511. [all data]
Bernheim, Bernard, et al., 1970
Bernheim, R.A.; Bernard, H.W.; Wang, P.S.; Wood, L.S.; Skell, P.S.,
Electron Paramagnetic Resonance of Triplet CH2,
J. Chem. Phys., 1970, 53, 3, 1280, https://doi.org/10.1063/1.1674129
. [all data]
Wasserman, Yager, et al., 1970
Wasserman, E.; Yager, W.A.; Kuck, V.J.,
EPR of CH2: a substiantially bent and partially rotating ground state triplet,
Chem. Phys. Lett., 1970, 7, 4, 409, https://doi.org/10.1016/0009-2614(70)80320-7
. [all data]
Wasserman, Kuck, et al., 1970
Wasserman, E.; Kuck, V.J.; Hutton, R.S.; Yager, W.A.,
Electron paramagnetic resonance of CD2 and CHD. Isotope effects, motion, and geometry of methylene,
J. Am. Chem. Soc., 1970, 92, 25, 7491, https://doi.org/10.1021/ja00728a054
. [all data]
Herzberg and Johns, 1971
Herzberg, G.; Johns, J.W.C.,
On the Structure of CH2 in its Triplet Ground State,
J. Chem. Phys., 1971, 54, 5, 2276, https://doi.org/10.1063/1.1675164
. [all data]
Mohlmann and DeHeer, 1976
Mohlmann, G.R.; DeHeer, F.J.,
Measurements of the radiative lifetime of CH2(1B1) and absolute CH2(1B1) → 1A1) emission cross sections for electrons (0--2000 eV) on CH4,
Chem. Phys. Lett., 1976, 43, 2, 236, https://doi.org/10.1016/0009-2614(76)85293-1
. [all data]
Grimley and Stephenson, 1981
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Notes
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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