Propanedinitrile, dimethyl-
- Formula: C5H6N2
- Molecular weight: 94.1145
- IUPAC Standard InChIKey: BCMJJXWXMZYZKN-UHFFFAOYSA-N
- CAS Registry Number: 7321-55-3
- 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. - Other names: Malononitrile, dimethyl-; Dimethylmalononitrile; 2,2-Dicyanopropane
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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
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 442.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 307.47 | K | N/A | Ribner and Westrum, 1967 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 14.81 ± 0.17 | kcal/mol | V | Beckhaus, Dogan, et al., 1990 | ALS |
ΔsubH° | 14.8 | kcal/mol | N/A | Beckhaus, Dogan, et al., 1990 | DRB |
ΔsubH° | 14.8 ± 0.2 | kcal/mol | N/A | Beckhaus, Dogan, et al., 1990 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.4 | 337. | A | Stephenson and Malanowski, 1987 | Based on data from 322. to 413. K. See also Ribner and Westrum, 1967, 2.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
0.968 | 307.5 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
7.789 | 302.6 | Domalski and Hearing, 1996 | CAL |
3.150 | 307.5 |
References
Go To: Top, Phase change data, 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]
Ribner and Westrum, 1967
Ribner, A.; Westrum, E.F.,
Dimethylmalononitrile low-temperature heat capacity, vapor pressure, density, and chemical thermodynamics of the crystalline, liquid, and gaseous phases,
J. Phys. Chem., 1967, 71, 1208-15. [all data]
Beckhaus, Dogan, et al., 1990
Beckhaus, H.D.; Dogan, B.; Pakusch, J.; Verevkin, S.; Ruechardt, C.,
Geminal substituent effects. 4. The dependence of the inverse anomeric effect of geminal cyano groups on the structure,
Chem. Ber., 1990, 123, 2153-2159. [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]
Ribner and Westrum, 1967, 2
Ribner, A.; Westrum, E.F., Jr.,
Dimethylmalononitrile. Low-temperature heat capacity, vapor pressure, density, and chemical thermodynamics of the crystalline, liquid, and gaseous phases,
J. Phys. Chem., 1967, 71, 1208-1215. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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