2,3-Dimethyl-2,3-bis[(E)phenylazo]butane
- Formula: C18H22N4
- Molecular weight: 294.3941
- IUPAC Standard InChI: InChI=1S/C18H22N4/c1-17(2,21-19-15-11-7-5-8-12-15)18(3,4)22-20-16-13-9-6-10-14-16/h5-14H,1-4H3/b21-19-,22-20+
- IUPAC Standard InChIKey: RNFPCGNDACOHHM-OLAQIDGISA-N
- CAS Registry Number: 133930-64-0
- Chemical structure:
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Gas phase 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 113.9 ± 0.6 | kcal/mol | Ccb | Engel, Wang, et al., 1993 | Hfusion =5.04±0.05 kcal/mol |
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:
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 27.34 | kcal/mol | N/A | Engel, Wang, et al., 1993 | DRB |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 5.041 | 342.3 | Engel, Wang, et al., 1993 | AC |
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.
Engel, Wang, et al., 1993
Engel, P.S.; Wang, C.; Chen, Y.; Ruchardt, C.; Beckhaus, H.-D.,
Synthesis, thermochemistry, and reactions of vicinal bis(azoalkanes). The chemistry α- and β-azo radicals,
J. Am. Chem. Soc., 1993, 115, 65-74. [all data]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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