Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermochemical studies of three N-thiocarbamoylbenzamidines

Ribeiro da Silva, M. A. V.[Manuel A. V.], Santos, L. M. N. B. F.[Luis M. N. B. F.], Schroder, B.[Bernd], Beyer, L.[Lothar]
J. Chem. Thermodyn. 2004, 36, 7, 555-559
ABSTRACT
The standard (p0 = 0:1 MPa) molar enthalpies of combustion, in oxygen, of three crystalline N-thiocarbamoylbenzamidines, PhCRNCSNEt2, R= -NH2 (DATB), -NEt2 (DATDB), -NHPh (DATPB), were measured at T = 298:15 K by rotating bomb calorimetry. The standard molar enthalpies of sublimation of the three compounds were measured by Calvet microcalorimetry. These values were used to derive the standard molar enthalpies of formation of the compounds in their crystalline and gaseous phases, respectively.
Compounds
# Formula Name
1 H2O4S sulfuric acid
2 CO2 carbon dioxide
3 N2 nitrogen
4 H2O water
5 O2 oxygen
6 C12H17N3S N-(diethylaminothiocarbonyl)benzamidine
7 C16H25N3S N-(diethylaminothiocarbonyl)-N',N'-diethylbenzamidine
8 C18H21N3S N-(diethylaminothiocarbonyl)-N'-phenylbenzamidine
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 6
  • Molar enthalpy, kJ/mol ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Drop calorimetry
  • 1
  • POMD
  • 7
  • Molar enthalpy, kJ/mol ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Drop calorimetry
  • 1
  • POMD
  • 8
  • Molar enthalpy, kJ/mol ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Drop calorimetry
  • 1
  • RXND
  • 1
  • 6
  • 2
  • 3
  • 4
  • 5
  • Specific internal energy of reaction at constant volume, J/g
  • BOMBRT:Method:BOMBRT
  • 1
  • RXND
  • 1
  • 7
  • 2
  • 3
  • 4
  • 5
  • Specific internal energy of reaction at constant volume, J/g
  • BOMBRT:Method:BOMBRT
  • 1
  • RXND
  • 1
  • 8
  • 2
  • 3
  • 4
  • 5
  • Specific internal energy of reaction at constant volume, J/g
  • BOMBRT:Method:BOMBRT
  • 1