Isocyanogen
- Formula: C2N2
- Molecular weight: 52.0348
- IUPAC Standard InChI: InChI=1S/C2N2/c1-4-2-3
- IUPAC Standard InChIKey: NHFDIUPJVYYTLG-UHFFFAOYSA-N
- CAS Registry Number: 83951-85-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Vibrational and/or electronic energy levels
Go To: Top, 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 | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 42523 | U | gas | Lynch, Bechtel, et al., 2007 | ||||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| a' | 5 | Bend | 200 | T | gas | PF | Lynch, Bechtel, et al., 2007 |
State: X
Additional references: Jacox, 1994, page 185; Jacox, 1998, page 248; Yamada, Markus, et al., 1989; Gerry, Stroh, et al., 1990
Notes
| w | Weak |
| m | Medium |
| vs | Very strong |
| U | Upper bound |
| T | Tentative assignment or approximate value |
| o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, 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.
Lynch, Bechtel, et al., 2007
Lynch, W.B.; Bechtel, H.A.; Steeves, A.H.; Curley, J.J.; Field, R.W.,
Observation of the A [sup 1]A[sup ´´] state of isocyanogen,
J. Chem. Phys., 2007, 126, 24, 244307, https://doi.org/10.1063/1.2745295
. [all data]
Stroh and Winnewisser, 1989
Stroh, F.; Winnewisser, M.,
Isocyanogen, CNCN: Infrared and microwave spectra and structure,
Chem. Phys. Lett., 1989, 155, 1, 21, https://doi.org/10.1016/S0009-2614(89)87353-1
. [all data]
Stroh, Winnewisser, et al., 1994
Stroh, F.; Winnewisser, M.; Winnewisser, B.P.,
The high-resolution Fourier transform infrared spectrum of isocyanogen, CNCN: rovibrational analysis of the ν,
Can. J. Phys., 1994, 72, 11-12, 1252, https://doi.org/10.1139/p94-161
. [all data]
Li, Wong, et al., 2003
Li, P.; Wong, L.K.; Fan, W.Y.,
Vibrational spectroscopy and 266 nm photochemistry of NCNCS and CNCN,
Chem. Phys. Lett., 2003, 380, 1-2, 117, https://doi.org/10.1016/j.cplett.2003.09.016
. [all data]
Jacox and Thompson, 2007
Jacox, M.E.; Thompson, W.E.,
Infrared spectroscopy and photochemistry of NCCN[sup +] and CNCN[sup +] trapped in solid neon,
J. Chem. Phys., 2007, 126, 5, 054308, https://doi.org/10.1063/1.2433945
. [all data]
Stroh, Winnewisser, et al., 1989
Stroh, F.; Winnewisser, B.P.; Winnewisser, M.; Reisenauer, H.P.; Maier, G.; Goede, S.J.; Bickelhaupt, F.,
Matrix-isolation infrared investigation of the flash vacuum thermolysis of norbornadienone azine,
Chem. Phys. Lett., 1989, 160, 2, 105, https://doi.org/10.1016/0009-2614(89)87565-7
. [all data]
McNaughton, Metha, et al., 1995
McNaughton, D.; Metha, G.F.; Tay, R.,
Generation of transient species by laser induced pyrolysis. The high resolution fourier transform infrared spectrum of NCN,
Chem. Phys., 1995, 198, 1-2, 107, https://doi.org/10.1016/0301-0104(95)00120-D
. [all data]
Stroh, Winnewisser, et al., 1993
Stroh, F.; Winnewisser, M.; Winnewisser, B.P.,
The High-Resolution Fourier Transform Infrared Spectrum of Isocyanogen, CNCN: Rovibrational Analysis of the ν4, ν5, and ν4 + ν5 Band Systems and the Fermi Dyad ν3 and 2ν4,
J. Mol. Spectrosc., 1993, 162, 2, 435, https://doi.org/10.1006/jmsp.1993.1296
. [all data]
Winnewisser, Seibert, et al., 1992
Winnewisser, M.; Seibert, J.W.G.; Yamada, K.M.T.,
Rotational spectrum of CNCN in excited vibrational states,
J. Mol. Spectrosc., 1992, 153, 1-2, 635, https://doi.org/10.1016/0022-2852(92)90499-E
. [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]
Yamada, Markus, et al., 1989
Yamada, K.M.T.; Markus, M.W.; Winnewisser, G.; Joentgen, W.; Kock, R.; Voegl, E.; Altenbach, H.-J.,
Isocyanogen as a pyrolysis product of N-cyano-2,3-diphenyl-cyclopropeneimine,
Chem. Phys. Lett., 1989, 160, 2, 113, https://doi.org/10.1016/0009-2614(89)87566-9
. [all data]
Gerry, Stroh, et al., 1990
Gerry, M.C.L.; Stroh, F.; Winnewisser, M.,
The microwave fourier transform, millimeter-wave, and submillimeter-wave rotational spectra of isocyanogen, CNCN,
J. Mol. Spectrosc., 1990, 140, 1, 147, https://doi.org/10.1016/0022-2852(90)90013-G
. [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.