1H-Imidazole

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Condensed 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfsolid  CcbZaheeruddin and Lodhi, 1991uncertain value: 59.96 kJ/mol; ALS
Δfsolid49.8 ± 0.6kJ/molCcbJimenez, Roux, et al., 1987see Jimenez, Roux, et al., 1986; ALS
Δfsolid58.5 ± 3.3kJ/molCcbBedford, Edmondson, et al., 1962Reanalyzed by Cox and Pilcher, 1970, Original value = 61. ± 3. kJ/mol; ALS
Quantity Value Units Method Reference Comment
Δcsolid  CcbZaheeruddin and Lodhi, 1991uncertain value: -1812.17 kJ/mol; ALS
Δcsolid-1801.9 ± 0.5kJ/molCcbJimenez, Roux, et al., 1987see Jimenez, Roux, et al., 1986; ALS
Δcsolid-1810.6 ± 3.3kJ/molCcbBedford, Edmondson, et al., 1962Reanalyzed by Cox and Pilcher, 1970, Original value = -1813.1 ± 3.3 kJ/mol; ALS
Δcsolid-1802.kJ/molCcbZimmerman and Geisenfelder, 1961ALS

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
82.4298.15Jimenez, Roux, et al., 1987Cp given as 1.21 J/g*K.; DH
89.78300.DeWit, DeKruif, et al., 1983T = 90 to 370 K.; DH
94.4310.DeWit, Offringa, et al., 1983T = 300 to 450 K.; DH

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.

Zaheeruddin and Lodhi, 1991
Zaheeruddin, M.; Lodhi, Z.H., Enthalpies of formation of some cyclic compounds, Phys. Chem. (Peshawar Pak.), 1991, 10, 111-118. [all data]

Jimenez, Roux, et al., 1987
Jimenez, P.; Roux, M.V.; Turrion, C., Thermochemical properties of N-heterocyclic compounds. I. Enthalpies of combustion, vapour pressures and enthalpies of sublimation, and enthalpies of formation of pyrazole, imidazole, indazole, and benzimidazole, J. Chem. Thermodyn., 1987, 19, 985-992. [all data]

Jimenez, Roux, et al., 1986
Jimenez, P.; Roux, M.V.; Turrion, C.; Gomis, F., Thermochemical properties of some N-heterocyclic compounds, J. Calorim. Anal. Therm. Thermodyn. Chim., 1986, 17, 469-470. [all data]

Bedford, Edmondson, et al., 1962
Bedford, A.F.; Edmondson, P.B.; Mortimer, C.T., Heats of formation and bond energies. Part VI. n-Butyliso-butyraldimine, n-butylisobutylamine, pyrazole, and imidazole, J. Chem. Soc., 1962, 2927-2931. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Zimmerman and Geisenfelder, 1961
Zimmerman, H.; Geisenfelder, H., Uber die Mesomerieenergie von Azolen, Z. Electrochem., 1961, 65, 368-371. [all data]

DeWit, DeKruif, et al., 1983
DeWit, H.G.M.; DeKruif, C.G.; Van Miltenburg, J.C., Thermodynamic properties of molecular organic crystals containing organic crystals containing nitrogen, oxygen, and sulfur. II. Molar heat capacities of eight compounds by adiabatic calorimetry, J. Chem. Thermodynam., 1983, 15, 891-902. [all data]

DeWit, Offringa, et al., 1983
DeWit, H.G.M.; Offringa, J.C.A.; De Kruif, C.G.; Van Miltenburg, J.C., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen and sulfur. III. Molar heat capacities measured by differential scanning calorimetry, Thermochim. Acta, 1983, 65, 43-51. [all data]


Notes

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