1,2-bis-difluoroamino-4-methylpentane: heats of combustion, formation, and vaporization; vapor pressure; and N--F thermochemical bond energy
The heat of combustion of 1,2-bis-difluoroamino-4-methylpentane was measured by rotating-bomb calorimetry, and the vapor pressure was measured between -20 and +20/sup 0/ with an inclined-piston gage. Experimental techniques suitable for studying compounds of this class were developed. The results were used to calculate the following thermochemical data in kcal. mole/sup -1/ at 298.15/sup 0/K: standard heat of formation of the liquid, -60.09; heat of vaporization, 10.51; and standard heat of formation of the gas, -49.58. The N--F thermochemical bond energy in this compound was found to be 67 kcal. mole/sup -1/, about the same as the N--F thermochemical bond energy in NF/sub 3/ and N/sub 2/F/sub 4/ but significantly less than that in perfluoropiperidine.
- Research Organization:
- Bureau of Mines, Bartlesville, OK
- OSTI ID:
- 7305430
- 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
Similar Records
Perfluoropiperidine: entropy, heat of formation, and vapor pressure; N--F bond energy; and solid-state transitions
Heats of combustion, sublimation, and formation of four dihalobiphenyls
Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
AMINES
BINDING ENERGY
COMBUSTION HEAT
ENERGY
ENTHALPY
FLUORINATED ALIPHATIC HYDROCARBONS
FORMATION HEAT
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT
HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
REACTION HEAT
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
VAPOR PRESSURE
VAPORIZATION HEAT