Isopropyl radical

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Vibrational and/or electronic energy levels

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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:   3d
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 48300 gas 3d-X Wendt and Hunziker, 1984

State:   3p
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 42499 gas 3p-X 225 260 Parkes and Quinn, 1976
Wendt and Hunziker, 1984

State:   3s
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 37000 T gas 3s-X Wendt and Hunziker, 1984

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
CH stretch 3052 Ar IR Pacansky and Coufal, 1980
Chettur and Snelson, 1987
CH3 stretch 2920 Ar IR Pacansky and Coufal, 1980
CH3 stretch 2850 Ar IR Pacansky and Coufal, 1980
CH3 stretch 2830 Ar IR Pacansky and Coufal, 1980
CH3 deform. 1468 Ar IR Pacansky and Coufal, 1980
CH3 deform. 1440 Ar IR Pacansky and Coufal, 1980
CH3 deform. 1388 Ar IR Pacansky and Coufal, 1980
CH3 deform. 1378 Ar IR Pacansky and Coufal, 1980
CH3 rock 1165 Ar IR Chettur and Snelson, 1987
CC stretch 879 Ar IR Chettur and Snelson, 1987
HC(CH3)2 OPLA 364 s Ar IR Pacansky and Coufal, 1980
Chettur and Snelson, 1987

Additional references: Jacox, 1994, page 383

Notes

sStrong
TTentative assignment or approximate value
xEnergy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Wendt and Hunziker, 1984
Wendt, H.R.; Hunziker, H.E., The UV spectra of primary, secondary, and tertiary alkyl radicals, J. Chem. Phys., 1984, 81, 2, 717, https://doi.org/10.1063/1.447755 . [all data]

Parkes and Quinn, 1976
Parkes, D.A.; Quinn, C.P., J. Chem. Soc., 1976, Faraday Trans. 1 72, 1952. [all data]

Pacansky and Coufal, 1980
Pacansky, J.; Coufal, H., The photochemistry and infrared spectrum of the isopropyl radical, J. Chem. Phys., 1980, 72, 5, 3298, https://doi.org/10.1063/1.439566 . [all data]

Chettur and Snelson, 1987
Chettur, G.; Snelson, A., Alkylperoxy and alkyl radicals. 3. Infrared spectra and ultraviolet photolysis of isopropylperoxy and isopropyl radicals in argon + oxygen matrixes, J. Phys. Chem., 1987, 91, 4, 913, https://doi.org/10.1021/j100288a030 . [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]

Notes

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