ABSTRACT

In this work a solution calorimetry approach was applied for determination of the sublimation enthalpies of 9 substituted acetanilides. The solution enthalpies of acetanilide and 9 its derivatives in acetonitrile were measured and solvation enthalpies were calculated by a group-additivity scheme. Additivity of solvation enthalpy due to influence of the substituent on the acidity of the proton of NHCOCH3-group and OH-group was checked with the use of IR-spectroscopy. The sublimation enthalpies obtained from the solution calorimetry approach were compared to the available literature data. In most cases convergence within the limits of experimental uncertainty was demonstrated.

Compounds

#	Formula	Name
1	C8H9NO	N-phenylethanamide
2	C8H8ClNO	N-(2-chlorophenyl)acetamide
3	C8H8BrNO	3-bromoacetanilide
4	C8H9NO2	3-acetamidophenol
5	C9H11NO	1-acetamido-4-methylbenzene
6	C8H8BrNO	N-(4-bromophenyl)acetamide
7	C8H8ClNO	N(4-chlorophenyl)ethanamide
8	C8H9NO2	N-acetyl-p-aminophenol
9	C8H8N2O3	N-(4-nitrophenyl)acetamide
10	C10H13NO2	N-(4-ethoxyphenyl)ethanamide
11	C8H10O	ethoxybenzene
12	C2H3N	acetonitrile

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	Phase	Method	#Points
POMD	1 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	2 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 2; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	3 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	4 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 4; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	5 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 5; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	6 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 6; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	7 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 7; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	8 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 8; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	9 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 9; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1
POMD	11 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 11; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Titration calorimetry	1
POMD	10 12	Molar enthalpy of solution, kJ/mol ; Liquid	Mole fraction - 10; Liquid Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Power-compensation calorimetry	1

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Sublimation enthalpies of 9 substituted acetanilides at 298 K estimated by solution calorimetry approach

Yagofarov, Mikhail I., Nagrimanov, Ruslan N., Solomonov, Boris N.

ABSTRACT