Open AccessCALCULATE THE STANDARD ENTHALPIES OF COMBUSTION, FORMATION AND MELTING OF THE COMPLEX ROSEOFUNGIN WITH α-, β- and γ-CYCLODEXTRIN
Author(s) -
R. I. Jalmakhanbetova,
E. M. Suleimen,
Б. К. Касенов
Publication year - 2021
Publication title -
izvestiâ nacionalʹnoj akademii nauk respubliki kazahstan. seriâ himii i tehnologii
Language(s) - English
Resource type - Journals
eISSN - 2518-1491
pISSN - 2224-5286
DOI - 10.32014/2021.2518-1491.48
Subject(s) - thermochemistry , standard enthalpy of formation , enthalpy , thermodynamics , combustion , chemistry , standard enthalpy change of formation , standard enthalpy of reaction , heat of combustion , enthalpy of atomization , organic chemistry , physics
One of the most important quantities in chemical thermodynamics and thermochemistry is the enthalpy of combustion. Of the currently existing methods for calculating the heat of combustion of natural and synthetic organic compounds, the most acceptable and correct in our case was the Karash method. In this study, the standard enthalpy of combustion, the standard enthalpy of formation, and the melting enthalpy of the antibiotic roseofungin and its cyclodextrin derivatives were calculated. As a result of the study, the thermodynamic constants of the standard enthalpies of combustion, standard enthalpies of formation, and the enthalpies of melting of the above compounds were calculated, which are of interest for physicochemical modeling of processes with their participation, serve as initial information arrays for loading into fundamental thermodynamic data banks and reference books, and is also important for standardization and certification of these complexes. It should be noted that the presence of a large number of hydroxyl groups in the structures of the studied complexes allows them to be attributed to polar compounds.