Benzotrifluoride: chemical thermodynamic properties and internal rotation

Journal Article · Fri Mar 13 04:00:00 EST 1959 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja01514a001· OSTI ID:7305408

Scott, D W; Douslin, D R; Messerly, J F; Todd, S S; Hossenlopp, I A; Kinchelor, T C; McCullough, J P

Thermodynamic and spectroscopic information was used to show that internal rotation in benzotrifluoride is nearly free. The chemical thermodynamic properties in the vapor state (0 to 1500/sup 0/K) were calculated by methods of statistical mechanics. Experimental studies provided the following information. Values of heat capacity for the solid (12/sup 0/K to the triple point), the liquid (triple point to 370/sup 0/K) and the vapor (363 to 500/sup 0/K); the triple point temperature; the heat of fusion; thermodynamic functions for the solid and liquid (0 to 370/sup 0/K); heat of vaporization (334 to 375/sup 0/K); second virial coefficient (334 to 500/sup 0/K); and vapor pressure (328 to 412/sup 0/K).

• Research Organization: Bureau of Mines, Bartlesville, OK
• OSTI ID: 7305408
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 81:5; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AROMATICS
ENERGY LEVELS
ENTHALPY
EXCITED STATES
FLUORINATED ALIPHATIC HYDROCARBONS
FUSION HEAT
HALOGENATED ALIPHATIC HYDROCARBONS
HIGH TEMPERATURE
LOW TEMPERATURE
MEDIUM TEMPERATURE
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
ROTATIONAL STATES
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
ULTRALOW TEMPERATURE
VAPOR PRESSURE
VAPORIZATION HEAT
VERY HIGH TEMPERATURE
VERY LOW TEMPERATURE