Standard molar enthalpies of combustion of the three trans -methoxycinnamic acids

The standard ( po = 0.1 MPa) molar enthalpies of formation for 2-, 3-, and 4- trans -methoxycinnamic acids in the gaseous phase were derived from the standard molar enthalpies of combustion in oxygen of the crystalline compounds determined by static bomb combustion calorimetry atT = 298.15 K and from the literature values for the respective enthalpies of sublimation. [Copyright &y& Elsevier]