1H-Tetrazole, 1,5-diphenyl-
- Formula: C13H10N4
- Molecular weight: 222.2453
- IUPAC Standard InChI: InChI=1S/C13H10N4/c1-3-7-11(8-4-1)13-14-15-16-17(13)12-9-5-2-6-10-12/h1-10H
- IUPAC Standard InChIKey: FCERNNLMTCOKHX-UHFFFAOYSA-N
- CAS Registry Number: 7477-73-8
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 125.9 ± 0.9 | kcal/mol | Ccb | Balepin, Lebedev, et al., 1977 | ALS |
| ΔfH°gas | 128.0 | kcal/mol | N/A | McEwan and Rigg, 1951 | Value computed using ΔfHsolid° value of 415.6 kj/mol from McEwan and Rigg, 1951 and ΔsubH° value of 120.0 kj/mol from Balepin, Lebedev, et al., 1977.; DRB |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | 97.2 ± 0.4 | kcal/mol | Ccb | Balepin, Lebedev, et al., 1977 | |
| ΔfH°solid | 99.32 | kcal/mol | Ccb | McEwan and Rigg, 1951 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -1661.5 ± 0.4 | kcal/mol | Ccb | Balepin, Lebedev, et al., 1977 | |
| ΔcH°solid | -1663.58 ± 0.52 | kcal/mol | Ccb | McEwan and Rigg, 1951 |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 28.7 ± 0.5 | kcal/mol | V | Balepin, Lebedev, et al., 1977 | ALS |
| ΔsubH° | 28.68 | kcal/mol | N/A | Balepin, Lebedev, et al., 1977 | DRB |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 29.05 | 348. | V | McEwan and Rigg, 1951 | ALS |
| 29.0 ± 1.0 | 355. | ME | McEwan and Rigg, 1951 | Based on data from 348. to 363. K. See also Cox and Pilcher, 1970.; AC |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Balepin, Lebedev, et al., 1977
Balepin, A.A.; Lebedev, V.P.; Miroshnichenko, E.A.; Koldobskii, G.I.; Ostovskii, V.A.; Larionov, B.P.; Gidaspov, B.V.; Lebedev, Yu.A.,
Energy effects in polyphenylenes and phenyltetrazoles,
Svoistva Veshchestv Str. Mol., 1977, 93-98. [all data]
McEwan and Rigg, 1951
McEwan, W.S.; Rigg, M.W.,
The heats of combustion of compounds containing the tetrazole ring,
J. Am. Chem. Soc., 1951, 73, 4725-4727. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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