H2CCl-Cl

Formula: CH₂Cl₂
Molecular weight: 84.933
Information on this page:
Options:
- Switch to calorie-based units

Vibrational and/or electronic energy levels

State: ?

Energy (cm^-1)	Med.	References


T_x_d = 28000	Ar	Andrews, Prochaska, et al., 1979

State: ?

Energy (cm^-1)	Med.	References


T_x_d = 16000	Ar	Andrews, Prochaska, et al., 1979

State: X

Approximate type of mode	cm^-1		Med.	Method	References


CH₂ stretch	3143.3	w	Ar	IR	Maier, Reisenauer, et al., 1990 Fridgen, Zhang, et al., 2000
CH₂ stretch	3023.5	w m	Ar	IR	Maier, Reisenauer, et al., 1990 Fridgen, Zhang, et al., 2000
CH₂ stretch	3019		Kr	IR	Fridgen, Zhang, et al., 2000
CH₂ scissors	1404.9	w m	Ar	IR	Maier, Reisenauer, et al., 1990 Fridgen, Zhang, et al., 2000
CH₂ scissors	1405		Kr	IR	Fridgen, Zhang, et al., 2000
CH₂ scissors	1402		Xe	IR	Fridgen, Zhang, et al., 2000
	1193	s T	Ar	IR	Andrews, Prochaska, et al., 1979 Kelsall and Andrews, 1983
CCl stretch	958.5	w m	Ar	IR	Maier, Reisenauer, et al., 1990 Fridgen, Zhang, et al., 2000
CCl stretch	965		Kr	IR	Fridgen, Zhang, et al., 2000
	763.2	vs	Ar	IR	Andrews, Prochaska, et al., 1979 Kelsall and Andrews, 1983 Maier, Reisenauer, et al., 1990 Fridgen, Zhang, et al., 2000
	775		Kr	IR	Fridgen, Zhang, et al., 2000
	776		Xe	IR	Fridgen, Zhang, et al., 2000

Additional references: Jacox, 1994, page 263; Jacox, 2003, page 269

Notes

Weak

Medium

Strong

Very 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.

Photodissociation threshold

References

Go To: Top, Vibrational and/or electronic energy levels, Notes

Andrews, Prochaska, et al., 1979
Andrews, L.; Prochaska, F.T.; Ault, B.S., Matrix photoionization and radiolysis of dichloromethane and dibromomethane. Infrared and ultraviolet absorption spectra and photolysis of CH2Cl2+ and CH2Br2+, J. Am. Chem. Soc., 1979, 101, 1, 9, https://doi.org/10.1021/ja00495a002 . [all data]

Maier, Reisenauer, et al., 1990
Maier, G.; Reisenauer, H.P.; Hu, J.; Schaad, L.J.; Hess, B.A., Jr., Photochemical isomerization of dihalomethanes in argon matrixes, J. Am. Chem. Soc., 1990, 112, 13, 5117, https://doi.org/10.1021/ja00169a020 . [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]

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]

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

Go To: Top, Vibrational and/or electronic energy levels, References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
Customer support for NIST Standard Reference Data products.