The thermodynamic properties of 2-methylaniline and trans-(R,S)- decahydroquinoline

Steele, W. V.; Chirico, R. D.; A., Nguyen,; Knipmeyer, S.E.

doi:10.2172/5109762

Cited by 24 publications

(41 citation statements)

References 2 publications

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“…(22) where T r =T/T c . The designation (2,4) refers to the exponents of the last two terms in the equation. Previously, the (2.5, 5) form, as recommended by Ambrose, (24) was used exclusively by this research group.…”

Section: Resultsmentioning

confidence: 99%

“…Equation (2) was used to calculate (1V x /1T ) x and the vapor-pressure fit was used for calculation of (1p/1T ) sat . The values of C II V,m and the vapor pressures were used in a weighted non-linear least-squares fit to derive functions for (1 2 …”

Section: Resultsmentioning

confidence: 99%

“…The first two papers concerned the properties of the six dimethylpyridines. (1,2) In the present paper, vapor pressures by comparative ebulliometry, densities for the liquid phase measured with a vibrating-tube densitometer, and two-phase (liquid+vapor) heat capacities to the temperature T10.9·T c by differential scanning calorimetry (d.s.c.) are reported for pyridine.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic properties of pyridine—I. Vapor pressures, high-temperature heat capacities, densities, critical properties, derived thermodynamic functions, vibrational assignment, and derivation of recommended values

Chirico¹,

Steele²,

Nguyen³

et al. 1996

The Journal of Chemical Thermodynamics

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermodynamic properties of pyridine—I. Vapor pressures, high-temperature heat capacities, densities, critical properties, derived thermodynamic functions, vibrational assignment, and derivation of recommended values

Chirico¹,

Steele²,

Nguyen³

et al. 1996

The Journal of Chemical Thermodynamics

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“…In an earlier topical report, NIPER-482, (19) on the thermodynamic properties of 2-aminobiphenyl, this minimum …”

Section: The Carbazole _ 2-aminobiphenyl -_ B Iphenyl Routementioning

confidence: 99%

Thermodynamics of the hydrodenitrogenation of carbazole

Steele¹,

Chirico²

1991

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EXECUTIVE SUMMARYA thermodynamic analysis was completed for the key hydrogen-consuming steps in the HDN reaction network for carbazole. The results are compared with literature reaction studies. The "crossover temperature" concept is shown to be a valuable tool in the interpretation of the reaction study results.The report concludes that the removal of nitrogen from heterocyclic aromatic nitrogen-containing compounds with conventional hydrodesulfurization catalysts, temperatures, and hydrogen pressures results in processing under thermodynamic control with unavoidably high hydrogen consumption. The report also concludes that to reduce hydrogen consumption in the HDN of carbazole, pathways via 1,2,3,4,4a,9a-hexahydrocarbazole must be followed. Conditions under which these processes are possible are discussed.iii ABSTRACT A thermodynamic analysis, based on accurate experimental Gibbs energies of formation, was completed for the key hydrogen-consuming steps In the HDN reaction network for carbazole. The results were compared with literature reaction studies. The concept of "crossover temperature" is shown to be a valuable tool in the interpretation of literature reaction-study results.Methods of nitrogen removal from aromatic materials are discussed in light of the findings of the thermodynamic analysis, lt is concluded that the removal of nitrogen from heterocyclic aromatic nitrogen-containing compounds with conventional hydrodesulfurization catalysts, temperatures, and hydrogen pressures occurs under "thermodynamic control" with u_lavoidably high hydrogen consumption. The report also concludes that to reduce hydrogen consumption in the HDN of carbazole, pathways via 1,2,3,4,4a,9a-hexahydrocarbazole must be followed. Conditions under which these processes are possible are discussed. ACKNOWLEDGEMENTS

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“…Recently, the enthalpy of formation of benzoxazole [9] has been reported, and that of the two benzisoxazoles, the isomeric nonbenzenoid [c] (cf. anthranil) and benzenoid [d] species [10].…”

Section: Introductionmentioning

confidence: 99%

Interplay of Thermochemistry and Structural Chemistry, the Journal (Volume 13, 2002) and the Discipline

Stem¹,

Liebman

2005

Struct Chem

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The thermodynamic properties of 2-methylaniline and trans-(R,S)- decahydroquinoline

Cited by 24 publications

References 2 publications

Thermodynamic properties of pyridine—I. Vapor pressures, high-temperature heat capacities, densities, critical properties, derived thermodynamic functions, vibrational assignment, and derivation of recommended values

Thermodynamic properties of pyridine—I. Vapor pressures, high-temperature heat capacities, densities, critical properties, derived thermodynamic functions, vibrational assignment, and derivation of recommended values

Thermodynamics of the hydrodenitrogenation of carbazole

Interplay of Thermochemistry and Structural Chemistry, the Journal (Volume 13, 2002) and the Discipline

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