Calorimetric and computational study of (1H-Indol-n-yl)methanol and 2-(1H-Indol-n-yl)ethanol (n=2, 3)

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Carvalho, TMT (Author) Other; Amaral, LMPF (Author) FCUP; Morais, VMF (Author) Other; Maria D M C R Ribeiro da Silva (Author) FCUP

Journal

Title: Thermochimica Acta

Vol. 673

Pages: 169-176

ISSN: 0040-6031

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-00Q-57A

DOI: 10.1016/j.tca.2019.01.021

Abstract (EN): In the present work, the gas-phase standard molar enthalpy of formation of 2-(1H-indol-3-yl)ethanol was derived, at T = 29B.15 K, from the enthalpy of combustion for the crystalline compound, measured by static-bomb calorimetry, and its enthalpy of sublimation obtained from Calvet microcalorimetry measurements. The standard molar enthalpies of formation of this compound and for (1H-indol-2-yl)methanol, (1H-indol-3-yl)methanol and 2-(1H-indol-2-yl)ethanol were calculated using the composite G3 method. The experimental value of the gasphase enthalpy of formation of 2-(1H-indol-3-yl)ethanol is -(48.5 +/- 3.3) kJ mol(-1), being in excellent agreement with the G3 value, thus giving confidence to the estimates. The results were analysed in terms of the enthalpic methylene increments and compared with other related systems.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8