HCCl2+

Formula: CHCl₂⁺
Molecular weight: 83.924
CAS Registry Number: 56932-33-3
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Vibrational and/or electronic energy levels

State: ?

Energy (cm^-1)		Med.	References


T_x = 40000	T	Ar	Jacox, 1976

State: X

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


a₁	1	CH stretch	3032.8	w	Ar	IR	Kelsall and Andrews, 1983 Fridgen, Zhang, et al., 2000
	2	CCl stretch	860 ± 30		gas	PE	Andrews, Dyke, et al., 1983 Andrews, Dyke, et al., 1984
	2	CCl stretch	845	w	Ar	IR	Kelsall and Andrews, 1983
b₂	5	H deformation	1291	m	Ar	IR	Jacox and Milligan, 1971 Jacox, 1976 Kelsall and Andrews, 1983 Fridgen, Zhang, et al., 2000
	6	CCl stretch	1044	s	Ar	IR	Jacox and Milligan, 1971 Jacox, 1976 Kelsall and Andrews, 1983 Fridgen, Zhang, et al., 2000
	6	CCl stretch	1038		Kr	IR	Fridgen, Zhang, et al., 2000

Additional references: Jacox, 1994, page 171; Jacox, 2003, page 195

Notes

Weak

Medium

Strong

Tentative assignment or approximate value

Energy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.

References

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Jacox, 1976
Jacox, M.E., Matrix isolation study of the products of the interaction between metastable Ar and Kr atoms and chloroform. Photodecomposition of HCCl+2 and HCCl-2, Chem. Phys., 1976, 12, 1, 51, https://doi.org/10.1016/0301-0104(76)80111-5 . [all data]

Kelsall and Andrews, 1983
Kelsall, B.J.; Andrews, L., FTIR spectroscopic studies of the matrix photoionization and photolysis products of methylene halides, J. Mol. Spectrosc., 1983, 97, 2, 362, https://doi.org/10.1016/0022-2852(83)90274-6 . [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]

Andrews, Dyke, et al., 1983
Andrews, L.; Dyke, J.M.; Jonathan, N.; Keddar, N.; Morris, A., A spectroscopic study of the ground states of CHCl+2 and CDCl+2 using a new multichannel detector photoelectron spectrometer, J. Chem. Phys., 1983, 79, 9, 4650, https://doi.org/10.1063/1.446385 . [all data]

Andrews, Dyke, et al., 1984
Andrews, L.; Dyke, J.M.; Jonathan, N.; Keddar, N.; Morris, A., Photoelectron spectroscopic study of the ground states of CH₂Cl⁺, CHCl₂⁺, and CHFCl⁺, J. Am. Chem. Soc., 1984, 106, 299. [all data]

Jacox and Milligan, 1971
Jacox, M.E.; Milligan, D.E., Matrix-Isolation Study of the Vacuum-Ultraviolet Photolysis of Chloroform. Infrared Spectra of the CCl3+, HCCl2+, and HCCl2- Molecular Ions, J. Chem. Phys., 1971, 54, 9, 3935, https://doi.org/10.1063/1.1675449 . [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]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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