Chemical thermodynamic properties and internal rotation of methylpyridines. II. 3-methylpyridine

Journal Article · Thu Feb 28 23:00:00 EST 1963 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100797a035· OSTI ID:7305424

Scott, D W; Good, W D; Guthrie, G B; Todd, S S; Hossenlopp, I A; Osborn, A G; McCullough, J P

Thermodynamic properties of 3-methylpyridine were measured and the results were correlated by use of spectral and molecular-structure data to obtain values of the chemical thermodynamic properties in the ideal gas state (0 to 1500/sup 0/K). Internal rotation of the methyl group was found to be free or nearly so. Experimental studies provided the following information: values of heat capacity for the solid (12/sup 0/K to the triple point), liquid (triple point to 393/sup 0/K), and the vapor (404 to 500/sup 0/K); the triple point temperature; the heat of fusion; thermodynamic functions for the solid and liquid (0 to 390/sup 0/K); heat of vaporization (372 to 417/sup 0/K); parameters of the equation of state; vapor pressure (347 to 458/sup 0/K); and the standard heat of formation at 298.15/sup 0/K.

• Research Organization: Bureau of Mines, Bartlesville, OK
• OSTI ID: 7305424
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 67; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AZINES
ENERGY LEVELS
ENTHALPY
EQUATIONS
EQUATIONS OF STATE
EXCITED STATES
FORMATION HEAT
FUSION HEAT
HETEROCYCLIC COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PYRIDINES
REACTION HEAT
ROTATIONAL STATES
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
VAPOR PRESSURE
VAPORIZATION HEAT