Dichloromethylene
- Formula: CCl2
- Molecular weight: 82.917
- IUPAC Standard InChIKey: PFBUKDPBVNJDEW-UHFFFAOYSA-N
- CAS Registry Number: 1605-72-7
- Chemical structure:
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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: A
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 17255.67 ± 0.02 | gas | A-X | 400 | 987 | Huie, Long, et al., 1977 | ||
Kiefer, Siegel, et al., 1978 | |||||||
Tiee, Wampler, et al., 1979 | |||||||
Predmore, Murray, et al., 1984 | |||||||
Ibuki, Takahashi, et al., 1986 | |||||||
Choe, Tanner, et al., 1989 | |||||||
Clouthier and Karolczak, 1989 | |||||||
Clouthier and Karolczak, 1991 | |||||||
Lu, Chen, et al., 1991 | |||||||
Liu, Lee, et al., 2003 | |||||||
Guss, Richmond, et al., 2005 | |||||||
Mukarakate, Mishchenko, et al., 2006 | |||||||
Richmond, Tao, et al., 2008 | |||||||
To = 17092 | Ar | A-X | 440 | 827 | Milligan and Jacox, 1967 | ||
Jacox and Milligan, 1970 | |||||||
Shirk, 1971 | |||||||
Tevault and Andrews, 1975 | |||||||
Bondybey, 1977 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | Sym. stretch | 634.3 | gas | LF | Predmore, Murray, et al., 1984 Choe, Tanner, et al., 1989 Clouthier and Karolczak, 1991 | |
1 | Sym. stretch | 624 | Ar | LF | Bondybey, 1977 | ||
2 | Bend | 302.6 | gas | LF | Tiee, Wampler, et al., 1979 Predmore, Murray, et al., 1984 Choe, Tanner, et al., 1989 Clouthier and Karolczak, 1991 | ||
2 | Bend | 304 | Ar | AB LF | Milligan and Jacox, 1967 Jacox and Milligan, 1970 Bondybey, 1977 | ||
State: a
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 7260 ± 1600 | gas | Wren, Vogelhuber, et al., 2009 | |||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | Sym. stretch | 600 | T | gas | PE | Wren, Vogelhuber, et al., 2009 |
2 | Bend | 300 | T | gas | PE | Wren, Vogelhuber, et al., 2009 | |
State: X
Additional references: Jacox, 1994, page 99; Jacox, 2003, page 138; Ibuki, Hiraya, et al., 1989; Fujitake and Hirota, 1989; Hansen, Mader, et al., 2001; Pancur, Brendel, et al., 2005
Notes
w | Weak |
m | Medium |
vs | Very strong |
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, 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.
Huie, Long, et al., 1977
Huie, R.E.; Long, N.J.T.; Thrush, B.A.,
Laser induced fluorescence of CFCl and CCl2 in the gas phase,
Chem. Phys. Lett., 1977, 51, 2, 197, https://doi.org/10.1016/0009-2614(77)80383-7
. [all data]
Kiefer, Siegel, et al., 1978
Kiefer, R.; Siegel, A.; Schultz, A.,
Two chemiluminescence studies of the reaction Ba + CCl4 → BaCl2 + CCl2(Ã),
Chem. Phys. Lett., 1978, 59, 2, 298, https://doi.org/10.1016/0009-2614(78)89099-X
. [all data]
Tiee, Wampler, et al., 1979
Tiee, J.J.; Wampler, F.B.; Rice, W.W.,
Laser-induced fluorescence excitation spectra of CCl2 and CFCI radicals in the gas phase,
Chem. Phys. Lett., 1979, 65, 3, 425, https://doi.org/10.1016/0009-2614(79)80264-X
. [all data]
Predmore, Murray, et al., 1984
Predmore, D.A.; Murray, A.M.; Harmony, M.D.,
Laser-excitation spectrum of gas-phase CCl2,
Chem. Phys. Lett., 1984, 110, 2, 173, https://doi.org/10.1016/0009-2614(84)80170-0
. [all data]
Ibuki, Takahashi, et al., 1986
Ibuki, T.; Takahashi, N.; Hiraya, A.; Shobatake, K.,
CCl2(A 1B1) radical formation in VUV photolyses of CCl4 and CBrCl3,
J. Chem. Phys., 1986, 85, 10, 5717, https://doi.org/10.1063/1.451532
. [all data]
Choe, Tanner, et al., 1989
Choe, J.-I.; Tanner, S.R.; Harmony, M.D.,
Laser-excitation spectrum and structure of CCl2 in a free-jet expansion from a heated nozzle,
J. Mol. Spectrosc., 1989, 138, 2, 319, https://doi.org/10.1016/0022-2852(89)90001-5
. [all data]
Clouthier and Karolczak, 1989
Clouthier, D.J.; Karolczak, J.,
Pyrolysis jet spectroscopy: rotationally resolved electronic spectrum of dichlorocarbene,
J. Phys. Chem., 1989, 93, 22, 7542, https://doi.org/10.1021/j100359a003
. [all data]
Clouthier and Karolczak, 1991
Clouthier, D.J.; Karolczak, J.,
A pyrolysis jet spectroscopic study of the rotationally resolved electronic spectrum of dichlorocarbene,
J. Chem. Phys., 1991, 94, 1, 1, https://doi.org/10.1063/1.460378
. [all data]
Lu, Chen, et al., 1991
Lu, Q.; Chen, Y.; Wang, D.; Zhang, Y.; Yu, S.; Chen, C.; Koshi, M.; Matsui, H.; Koda, S.; Ma, X.,
Laser-induced fluorescence excitation spectrum of CCl2 cooled in a supersonic free jet,
Chem. Phys. Lett., 1991, 178, 5-6, 517, https://doi.org/10.1016/0009-2614(91)87012-Z
. [all data]
Liu, Lee, et al., 2003
Liu, M.-L.; Lee, C.-L.; Bezant, A.; Tarczay, G.; Clark, R.J.; Miller, T.A.; Chang, B.-C.,
Dispersed fluorescence spectra of the CCl2 Ã--X vibronic bands,
Phys. Chem. Chem. Phys., 2003, 5, 7, 1352, https://doi.org/10.1039/b300637a
. [all data]
Guss, Richmond, et al., 2005
Guss, J.S.; Richmond, C.A.; Nauta, K.; Kable, S.H.,
Laser-induced fluorescence excitation and dispersed fluorescence spectroscopy of the «65533»(1B1)?X?(1A1) transition of dichlorocarbene,
Phys. Chem. Chem. Phys., 2005, 7, 1, 100, https://doi.org/10.1039/b413391a
. [all data]
Mukarakate, Mishchenko, et al., 2006
Mukarakate, C.; Mishchenko, Y.; Brusse, D.; Tao, C.; Reid, S.A.,
Probing spin?orbit mixing and the singlet?triplet gap in dichloromethylene via?Ka-sorted emission spectra,
Phys. Chem. Chem. Phys., 2006, 8, 37, 4320, https://doi.org/10.1039/b610582c
. [all data]
Richmond, Tao, et al., 2008
Richmond, C.; Tao, C.; Mukarakate, C.; Fan, H.; Nauta, K.; Schmidt, T.W.; Kable, S.H.; Reid, S.A.,
Unraveling the A,
J. Phys. Chem. A, 2008, 112, 45, 11355, https://doi.org/10.1021/jp806944q
. [all data]
Milligan and Jacox, 1967
Milligan, D.E.; Jacox, M.E.,
Matrix-Isolation Study of the Reaction of Carbon Atoms with Chlorine. The Electronic and Vibrational Spectra of the Free Radical CCl2,
J. Chem. Phys., 1967, 47, 2, 703, https://doi.org/10.1063/1.1711942
. [all data]
Jacox and Milligan, 1970
Jacox, M.E.; Milligan, D.E.,
Matrix-Isolation Study of the Vacuum-Ultraviolet Photolysis of Methyl Chloride and Methylene Chloride. Infrared and Ultraviolet Spectra of the Free Radicals CCl, H2CCl, and CCl2,
J. Chem. Phys., 1970, 53, 7, 2688, https://doi.org/10.1063/1.1674392
. [all data]
Shirk, 1971
Shirk, J.S.,
Laser Excited Fluorescence of CCl2,
J. Chem. Phys., 1971, 55, 7, 3608, https://doi.org/10.1063/1.1676629
. [all data]
Tevault and Andrews, 1975
Tevault, D.E.; Andrews, L.,
Laser-induced fluorescence spectrum of argon matrix-isolated dichlorocarbene,
J. Mol. Spectrosc., 1975, 54, 1, 110, https://doi.org/10.1016/0022-2852(75)90012-0
. [all data]
Bondybey, 1977
Bondybey, V.E.,
Emission and excitation spectra of CCl2 in solid argon,
J. Mol. Spectrosc., 1977, 64, 2, 180, https://doi.org/10.1016/0022-2852(77)90257-0
. [all data]
Wren, Vogelhuber, et al., 2009
Wren, S.W.; Vogelhuber, K.M.; Ervin, K.M.; Lineberger, W.C.,
The photoelectron spectrum of CCl2-: the convergence of theory and experiment after a decade of debate,
Phys. Chem. Chem. Phys., 2009, 11, 23, 4745, https://doi.org/10.1039/b822690c
. [all data]
Murray, Leopold, et al., 1988
Murray, K.K.; Leopold, D.G.; Miller, T.M.; Lineberger, W.C.,
Photoelectron Spectroscopy of the Halocarbene Anions HCF-, HCCl-, HCBr-, HCI-, CF2-, and CCl2-,
J. Chem. Phys., 1988, 89, 9, 5442, https://doi.org/10.1063/1.455596
. [all data]
Schwartz, Davico, et al., 1999
Schwartz, R.L.; Davico, G.E.; Ramond, T.M.; Lineberger, W.C.,
Singlet-Triplet Splittings in CX,
J. Phys. Chem. A, 1999, 103, 41, 8213, https://doi.org/10.1021/jp992214c
. [all data]
Lugez, Jacox, et al., 1998
Lugez, C.L.; Jacox, M.E.; Johnson, R.D., III,
Matrix isolation study of the interaction of excited neon atoms with CCl[sub 4]: Infrared spectra of the ion products and of Cl[sub 2]CCl••Cl,
J. Chem. Phys., 1998, 109, 17, 7147, https://doi.org/10.1063/1.477397
. [all data]
Andrews, 1968
Andrews, L.,
Infrared Spectrum of Dichlorocarbene in Solid Argon,
J. Chem. Phys., 1968, 48, 3, 979, https://doi.org/10.1063/1.1668853
. [all data]
Fridgen, Zhang, et al., 2000
Fridgen, T.D.; Zhang, X.K.; Parnis, J.M.; March, R.E.,
Isomerization and Fragmentation Products of CH,
J. Phys. Chem. A, 2000, 104, 16, 3487, https://doi.org/10.1021/jp993162u
. [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, 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]
Ibuki, Hiraya, et al., 1989
Ibuki, T.; Hiraya, A.; Shobatake, K.,
Photoabsorption spectrum and CCl2(Ã 1B1) radical formation in the VUV excitation of C2Cl6,
Chem. Phys. Lett., 1989, 157, 6, 521, https://doi.org/10.1016/S0009-2614(89)87403-2
. [all data]
Fujitake and Hirota, 1989
Fujitake, M.; Hirota, E.,
The millimeter- and submillimeter-wave spectrum of dichlorocarbene CCl2: Electronic structure estimated from the nuclear quadrupole coupling constants,
J. Chem. Phys., 1989, 91, 6, 3426, https://doi.org/10.1063/1.456916
. [all data]
Hansen, Mader, et al., 2001
Hansen, N.; Mader, H.; Temps, F.,
The rotational spectrum of dichlorocarbene, C35Cl2, observed by molecular beam-Fourier transform microwave spectroscopy,
Phys. Chem. Chem. Phys., 2001, 3, 1, 50, https://doi.org/10.1039/b007492f
. [all data]
Pancur, Brendel, et al., 2005
Pancur, T.; Brendel, K.; Hansen, N.; Madur, H.; Markov, V.; Temps, F.,
Microwave spectra of the 35Cl and 37Cl isotopomers of dichloromethylene: Nuclear quadrupole-, spin--rotation-, and nuclear shielding constants from the hyperfine structures of rotational lines,
J. Mol. Spectrosc., 2005, 232, 2, 375, https://doi.org/10.1016/j.jms.2005.04.013
. [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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