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CHN2


Reaction thermochemistry data

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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: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

CN2- + Hydrogen cation = CHN2

By formula: CN2- + H+ = CHN2

Quantity Value Units Method Reference Comment
Deltar1473. ± 18.kJ/molG+TSClifford, Wenthold, et al., 1998gas phase; between pyrazole, tBuSH
Quantity Value Units Method Reference Comment
Deltar1441. ± 17.kJ/molIMRBClifford, Wenthold, et al., 1998gas phase; between pyrazole, tBuSH

Vibrational and/or electronic energy levels

Go To: Top, Reaction thermochemistry 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:   C


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

To = 31521 gas C-X 289 317 Basco and Yee, 1968
Kroto, Morgan, et al., 1970
Bise, Hoops, et al., 2001


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

a' NCN s-stretch 1024 gas AB PF Basco and Yee, 1968
Kroto, Morgan, et al., 1970
Bise, Hoops, et al., 2001

State:   B


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

To = 28994.1 gas A-X 344 364 Herzberg and Warsop, 1963
Wu, Hall, et al., 1993
Bise, Hoops, et al., 2001


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

a 6 NCN deform. 560 ± 10 gas PF Bise, Hoops, et al., 2001

State:   X


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

a' 1 NH stretch 3297.5 m Ar IR Maier, Eckwert, et al., 1996
2 NCN a-stretch 1879 ± 106 gas PE Clifford, Wenthold, et al., 1997
2 NCN a-stretch 1843 s Ar IR Maier, Eckwert, et al., 1996
3 NCN s-stretch 1049 ± 162 gas PE Clifford, Wenthold, et al., 1997
3 1146 vs Ar IR Maier, Eckwert, et al., 1996
a 6 NCN deform. 440 T gas LF Wu, Hall, et al., 1993

Additional references: Jacox, 1994, page 160; Jacox, 1998, page 235; Jacox, 2003, page 188; Yamamoto and Saito, 1994

Notes

mMedium
sStrong
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, Reaction thermochemistry 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.

Clifford, Wenthold, et al., 1998
Clifford, E.P.; Wenthold, P.G.; Lineberger, W.C.; Peterssom, G.A.; Broaddus, K.M.; Kass, S.R.; Kato, S., Properties of Diazocarbene [CNN] and the diazomethyl Radical [HCNN] via Ion Chemistry and Spectroscopy, J. Phys. Chem. A, 1998, 102, 36, 7100, https://doi.org/10.1021/jp9802735 . [all data]

Basco and Yee, 1968
Basco, N.; Yee, K.K., Chem. Commun., 1968, 150. [all data]

Kroto, Morgan, et al., 1970
Kroto, H.W.; Morgan, T.F.; Sheena, H.H., Flash photolysis of cyanogen azide, NCN3, Trans. Faraday Soc., 1970, 66, 2237, https://doi.org/10.1039/tf9706602237 . [all data]

Bise, Hoops, et al., 2001
Bise, R.T.; Hoops, A.A.; Neumark, D.M., Photodissociation and photoisomerization pathways of the HNCN free radical, J. Chem. Phys., 2001, 114, 20, 9000, https://doi.org/10.1063/1.1367411 . [all data]

Herzberg and Warsop, 1963
Herzberg, G.; Warsop, P.A., SPECTRUM AND STRUCTURE OF THE FREE HNCN RADICAL, Can. J. Phys., 1963, 41, 2, 286, https://doi.org/10.1139/p63-034 . [all data]

Wu, Hall, et al., 1993
Wu, M.; Hall, G.; Sears, T.J., J. Chem. Soc., 1993, Faraday Trans. 89, 615. [all data]

Maier, Eckwert, et al., 1996
Maier, G.; Eckwert, J.; Bothur, A.; Reisenauer, H.P.; Schmidt, C., Liebigs Ann., 1996, 1041. [all data]

Clifford, Wenthold, et al., 1997
Clifford, E.P.; Wenthold, P.G.; Lineberger, W.C.; Peterssom, G.A.; Ellison, G.B., Photoelectron Spectroscopy of the NCN- and HNCN- Ions, J. Phys. Chem. A, 1997, 101, 24, 4338, https://doi.org/10.1021/jp964067d . [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]

Yamamoto and Saito, 1994
Yamamoto, S.; Saito, S., Microwave spectrum of the HNCN radical in the X 2A' ground electronic state, J. Chem. Phys., 1994, 101, 12, 10350, https://doi.org/10.1063/1.467915 . [all data]


Notes

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