Diazene, dimethyl-
- Formula: C2H6N2
- Molecular weight: 58.0824
- IUPAC Standard InChIKey: JCCAVOLDXDEODY-UHFFFAOYSA-N
- CAS Registry Number: 503-28-6
- 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. - Stereoisomers:
- Other names: Azomethane; (CH3N)2; 1,2-Dimethyldiazene; Dimethyldiazene
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Phase change 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 274.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 275. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
26.4 | 258. | A | Stephenson and Malanowski, 1987 | Based on data from 195. to 273. K.; AC |
25.3 | 222. | A | Stephenson and Malanowski, 1987 | Based on data from 209. to 236. K.; AC |
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: Takehiko Shimanouchi
Symmetry: C2h Symmetry Number σ = 2
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
ag | 1 | CH3 d-str | 2977 | C | ia | 2977 M dp | liq. | |||
ag | 2 | CH3 s-str | 2916 | C | ia | 2916 S p | liq. | |||
ag | 3 | NN str | 1580 | C | ia | 1580 VW p | liq. | |||
ag | 4 | CH3 d-deform | 1434 | C | ia | 1434 M | liq. | |||
ag | 5 | CH3 s-deform | 1380 | C | ia | 1380 W | liq. | |||
ag | 6 | CN str | 1176 | C | ia | 1176 VW | liq. | |||
ag | 7 | CH3 rock | 916 | C | ia | 916 M | liq. | |||
ag | 8 | CCN bend | 589 | C | ia | 589 VS p | liq. | |||
au | 9 | CH3 d-str | 2966 | D | 2966 W sh | sln. | ia | |||
au | 10 | CH3 d-deform | 1438 | C | 1438 | gas | ia | |||
au | 11 | CH3 rock | 1109 | C | 1109 W | gas | ia | |||
au | 12 | CCN bend | 312 | D | 312 S | sln. | ia | |||
au | 13 | CH3 torsion | 222 | D | 222 VW | gas | ia | |||
bg | 14 | CH3 d-str | 2982 | D | ia | 2982 VS | sln. | |||
bg | 15 | CH3 d-deform | 1447 | D | ia | 1447 S | sln. | |||
bg | 16 | CH3 rock | 1010 | D | ia | 1010 VW | liq. | |||
bg | 17 | CH3 torsion | 223 | D | ia | 223 W | sln. | |||
bu | 18 | CH3 d-str | 2982 | C | 2982 VS | gas | ia | |||
bu | 19 | CH3 s-str | 2926 | C | 2926 VS | gas | ia | |||
bu | 20 | CH3 d-deform | 1445 | C | 1445 S | gas | ia | |||
bu | 21 | CH3 s-deform | 1393 | C | 1393 M | gas | ia | |||
bu | 22 | CN str | 1300 | C | 1300 VW | gas | ia | |||
bu | 23 | CH3 rock | 1009 | C | 1009 W | gas | ia | |||
bu | 24 | CCN bend | 352 | C | 352 M | gas | ia | |||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
M | Medium |
W | Weak |
VW | Very weak |
ia | Inactive |
sh | Shoulder |
p | Polarized |
dp | Depolarized |
C | 3~6 cm-1 uncertainty |
D | 6~15 cm-1 uncertainty |
Gas Chromatography
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 396. | Zenkevich, 1999 | Program: not specified |
References
Go To: Top, Phase change data, Vibrational and/or electronic energy levels, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Zenkevich, 1999
Zenkevich, I.G.,
Precalculation of Gas Chromatographic Retention Indices of Organic Compounds from Boiling Points of their Structural Analogues,
Zh. Struct. Khim., 1999, 40, 1, 121-130. [all data]
Notes
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- Symbols used in this document:
Tboil Boiling point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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