ClOO

Formula: ClO₂
Molecular weight: 67.452
IUPAC Standard InChI: InChI=1S/ClO2/c1-3-2
IUPAC Standard InChIKey: ASCHNMXUWBEZDM-UHFFFAOYSA-N
CAS Registry Number: 17376-09-9
Chemical structure:
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Vibrational and/or electronic energy levels

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State: ?

Energy (cm^-1)	Med.	λ_min (nm)	λ_max (nm)	References


T_x = 40300	gas	225	270	Morris and Johnston, 1968
				Johnston, Morris, et al., 1969
				Baer, Hippler, et al., 1991
				Mauldin, Burkholder, et al., 1992

State: ?

Energy (cm^-1)		Med.	References


T_x = 40000	T	Ne	Muller and Willner, 1993

State: ?

Energy (cm^-1)		Med.	References


T_x = 40000	T	Ar	Johnsson, Engdahl, et al., 1993

State: X

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


a'	1	OO stretch	1443		gas	IR	Johnston, Morris, et al., 1969
	1	OO stretch	1442.5		Ne	IR	Muller and Willner, 1993 Lai, Liu, et al., 1998
	1	OO stretch	1439.6		Ne	IR	Muller and Willner, 1993 Lai, Liu, et al., 1998
	1	OO stretch	1442.5	vs	Ar	IR	Arkell and Schwager, 1967 Johnsson, Engdahl, et al., 1993 Lai, Liu, et al., 1998
	1	OO stretch	1416.7		Ar	IR	Arkell and Schwager, 1967 Johnsson, Engdahl, et al., 1993 Lai, Liu, et al., 1998
	1	OO stretch	1440.7		Kr	IR	Lai, Liu, et al., 1998
	1	OO stretch	1412.1		Kr	IR	Lai, Liu, et al., 1998
	1	OO stretch	1438		N₂	IR	Rochkind and Pimentel, 1967
	1	OO stretch	1428		N₂	IR	Rochkind and Pimentel, 1967
	1	OO stretch	1436		O₂	IR	Johnsson, Engdahl, et al., 1993
	2	Bend	413.7		Ne	IR	Muller and Willner, 1993
	2	Bend	408.3	w	Ar	IR	Arkell and Schwager, 1967 Johnsson, Engdahl, et al., 1993
	3	ClO stretch	201.4		Ne	IR	Muller and Willner, 1993
	3	ClO stretch	192.4	w	Ar	IR	Johnsson, Engdahl, et al., 1993
	3	ClO stretch	203		O₂	IR	Johnsson, Engdahl, et al., 1993

Additional references: Jacox, 1994, page 110; Jacox, 1998, page 204; Jacox, 2003, page 147; Suma, Sumiyoshi, et al., 2004

Notes

Weak

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.

References

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Morris and Johnston, 1968
Morris, E.D., Jr.; Johnston, H.S., Ultraviolet spectrum of the chlorine dioxygen radical, J. Am. Chem. Soc., 1968, 90, 7, 1918, https://doi.org/10.1021/ja01009a053 . [all data]

Johnston, Morris, et al., 1969
Johnston, H.S.; Morris, E.D., Jr.; Van den Bogaerde, J., Molecular Modulation Kinetic Spectrometry. CIOO and CIO, J. Am. Chem. Soc., 1969, 91, 27, 7712, https://doi.org/10.1021/ja50001a036 . [all data]

Baer, Hippler, et al., 1991
Baer, S.; Hippler, H.; Rahn, R.; Siefke, M.; Seitzinger, N.; Troe, J., Thermodynamic and kinetic properties of the reaction Cl+O2+M=ClOO+M in the range 160--300 K and 1--1000 bar, J. Chem. Phys., 1991, 95, 9, 6463, https://doi.org/10.1063/1.461543 . [all data]

Mauldin, Burkholder, et al., 1992
Mauldin, R.L., III; Burkholder, J.B.; Ravishankara, A.R., A photochemical, thermodynamic, and kinetic study of chloroperoxy, J. Phys. Chem., 1992, 96, 6, 2582, https://doi.org/10.1021/j100185a035 . [all data]

Muller and Willner, 1993
Muller, H.S.P.; Willner, H., Vibrational and electronic spectra of chlorine dioxide, OClO, and chlorine superoxide ClOO, isolated in cryogenic matrixes, J. Phys. Chem., 1993, 97, 41, 10589, https://doi.org/10.1021/j100143a013 . [all data]

Johnsson, Engdahl, et al., 1993
Johnsson, K.; Engdahl, A.; Nelander, B., A matrix isolation study of the chlorine superoxide radical, J. Phys. Chem., 1993, 97, 38, 9603, https://doi.org/10.1021/j100140a013 . [all data]

Lai, Liu, et al., 1998
Lai, L.-H.; Liu, C.-P.; Lee, Y.-P., Laser photolysis of OClO in solid Ne, Ar, and Kr. II. Site selectivity, mode specificity, and effects of matrix hosts, J. Chem. Phys., 1998, 109, 3, 988, https://doi.org/10.1063/1.476641 . [all data]

Arkell and Schwager, 1967
Arkell, A.; Schwager, I., None, J. Am. Chem. Soc., 1967, 89, 24, 5999, https://doi.org/10.1021/ja01000a001 . [all data]

Rochkind and Pimentel, 1967
Rochkind, M.M.; Pimentel, G.C., Photolysis of Matrix-Isolated Dichlorine Monoxide: Infrared Spectra of ClClO and (ClO)2, J. Chem. Phys., 1967, 46, 11, 4481, https://doi.org/10.1063/1.1840572 . [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]

Suma, Sumiyoshi, et al., 2004
Suma, K.; Sumiyoshi, Y.; Endo, Y., Fourier transform microwave spectroscopy and Fourier transform microwave--millimeter wave double resonance spectroscopy of the ClOO radical, J. Chem. Phys., 2004, 121, 17, 8351, https://doi.org/10.1063/1.1792591 . [all data]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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