Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Formaldehyde, seleno-


Gas phase ion energetics data

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

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

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

Quantity Value Units Method Reference Comment
Proton affinity (review)764.0kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity734.9kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.95PEBock, Aygen, et al., 1984LBLHLM

Vibrational and/or electronic energy levels

Go To: Top, Gas phase ion energetics data, 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   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 13555 T gas A-X 685 833 Clouthier, Judge, et al., 1987
Judge, Clouthier, et al., 1988
Glinski, Taylor, et al., 1991


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

a1 3 C=Se stretch 662 gas LF Judge, Clouthier, et al., 1988
b1 4 OPLA 355 T gas LF Judge, Clouthier, et al., 1988

State:   a


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 12162.514 gas a-X 658 865 Judge and Moule, 1984
Glinski, Mishalanie, et al., 1986
Clouthier, Judge, et al., 1987
Judge, Clouthier, et al., 1988
Glinski, Taylor, et al., 1991
Joo, Clouthier, et al., 1995


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

a1 2 CH2 scissors 1312 gas LF Clouthier, Judge, et al., 1987
Judge, Clouthier, et al., 1988
3 C=Se stretch 704 gas AB CL Judge and Moule, 1984
Glinski, Mishalanie, et al., 1986
Glinski, Taylor, et al., 1991
3 C=Se stretch 704 gas LF Clouthier, Judge, et al., 1987
Judge, Clouthier, et al., 1988
b1 4 OPLA 297 gas AB LF Judge and Moule, 1984
Clouthier, Judge, et al., 1987
Judge, Clouthier, et al., 1988
b2 6 HCSe bend 812 gas LF Clouthier, Judge, et al., 1987
Judge, Clouthier, et al., 1988

State:   X


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

a1 1 CH2 s-stretch 2972.5 m Ar IR Beckers, Kim, et al., 2008
2 CH2 scissors 1460 ± 30 gas CL Glinski, Taylor, et al., 1991
2 CH2 scissors 1413.3 w Ar IR Beckers, Kim, et al., 2008
3 C=Se stretch 860 ± 10 gas CL Glinski, Taylor, et al., 1991
3 C=Se stretch 854.2 w Ar IR Beckers, Kim, et al., 2008
b1 4 OPLA 906 ± 10 gas CL Glinski, Taylor, et al., 1991
4 OPLA 916.4 vs Ar IR Beckers, Kim, et al., 2008
b2 5 CH2 a-stretch 3052.9 w Ar IR Beckers, Kim, et al., 2008
6 HCSe bend 914 ± 10 gas CL Glinski, Taylor, et al., 1991
6 HCSe bend 913.2 w m Ar IR Beckers, Kim, et al., 2008

Additional references: Jacox, 1994, page 145; Jacox, 1998, page 226; Jacox, 2003, page 174; Brown, Godfrey, et al., 1985; Brown, Godfrey, et al., 1986; Clouthier, Judge, et al., 1990; Joo, Clouthier, et al., 2000

Notes

wWeak
mMedium
vsVery strong
TTentative assignment or approximate value
oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

Go To: Top, Gas phase ion energetics data, 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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Bock, Aygen, et al., 1984
Bock, H.; Aygen, S.; Rosmus, P.; Solouki, B.; Weissflog, E., Gasphasen-reaktionen,40. Selenoformaldehyd: Hochkorrelierte wellenfunktion und photoelektronenspektroskopischer nachweis, Chem. Ber., 1984, 117, 187. [all data]

Clouthier, Judge, et al., 1987
Clouthier, D.J.; Judge, R.H.; Moule, D.C., The laser excitation spectrum of selenoformaldehyde: vibrational analyses of the 1A2 <-- 1A1 and 3A2 <-- 1A1 electronic transitions, Chem. Phys., 1987, 114, 3, 417, https://doi.org/10.1016/0301-0104(87)85055-3 . [all data]

Judge, Clouthier, et al., 1988
Judge, R.H.; Clouthier, D.J.; Moule, D.C., The laser excitation spectrum of CH2Se and CD2Se in the near infrared, J. Chem. Phys., 1988, 89, 4, 1807, https://doi.org/10.1063/1.455128 . [all data]

Glinski, Taylor, et al., 1991
Glinski, R.J.; Taylor, C.D.; Martin, H.R., Chemiluminescence spectra of thioformaldehyde and selenoformaldehyde, J. Phys. Chem., 1991, 95, 16, 6159, https://doi.org/10.1021/j100169a021 . [all data]

Judge and Moule, 1984
Judge, R.H.; Moule, D.C., Detection of a3A2(n,.pi.*) selenoformaldehyde by flash pyrolysis, J. Am. Chem. Soc., 1984, 106, 19, 5406, https://doi.org/10.1021/ja00331a004 . [all data]

Glinski, Mishalanie, et al., 1986
Glinski, R.J.; Mishalanie, E.A.; Birks, J.W., Selenoformaldehyde phosphorescence observed in the reaction of molecular fluorine with dimethyl diselenide, J. Am. Chem. Soc., 1986, 108, 3, 531, https://doi.org/10.1021/ja00263a042 . [all data]

Joo, Clouthier, et al., 1995
Joo, D.-L.; Clouthier, D.J.; Judge, R.H.; Moule, D.C., Very large zero field splittings in the triplet state of an asymmetric top: Rotational analysis and Zeeman effects in the 820 nm a 3A2-- X 1A1 band system of selenoformaldehyde, J. Chem. Phys., 1995, 102, 19, 7351, https://doi.org/10.1063/1.469047 . [all data]

Beckers, Kim, et al., 2008
Beckers, H.; Kim, Y.S.; Willner, H., Infrared Spectrum of Matrix Isolated Selenoformaldehyde, CH, Inorg. Chem., 2008, 47, 5, 1693, https://doi.org/10.1021/ic702237v . [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]

Brown, Godfrey, et al., 1985
Brown, R.D.; Godfrey, P.D.; McNaughton, D., The microwave spectrum of selenoformaldehyde, Chem. Phys. Lett., 1985, 118, 1, 29, https://doi.org/10.1016/0009-2614(85)85259-3 . [all data]

Brown, Godfrey, et al., 1986
Brown, R.D.; Godfrey, P.D.; McNaughton, D.; Taylor, P.R., The structure of H2CSe from microwave spectroscopy, J. Mol. Spectrosc., 1986, 120, 2, 292, https://doi.org/10.1016/0022-2852(86)90005-6 . [all data]

Clouthier, Judge, et al., 1990
Clouthier, D.J.; Judge, R.H.; Moule, D.C., Selenoformaldehyde: Rotational analysis of the 735 nm band system of H2C78Se, H2C80Se, and D2C80Se from high-resolution laser fluorescence excitation spectra, J. Mol. Spectrosc., 1990, 141, 2, 175, https://doi.org/10.1016/0022-2852(90)90157-L . [all data]

Joo, Clouthier, et al., 2000
Joo, D.-L.; Clouthier, D.J.; Judge, R.H., Experimental proof of the case (ab) coupling hypothesis in the first excited triplet state of selenoformaldehyde (H[sub 2]C[Double Bond]Se), J. Chem. Phys., 2000, 112, 5, 2285, https://doi.org/10.1063/1.480827 . [all data]


Notes

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References