Spectroscopic study, thermal investigation and evolved gas analysis (EGA) during pyrolysis and oxidative decomposition of new binuclear complexes of La(III), Ce(III), Pr(III) and Nd(III) with N-phenylanthranilic acid

A study on enhancing the quantum yield and antimicrobial activity of Pr(iii) by varying the coordination environment

“…Using TGA and DTG curves, the rst dehydration of Pr complexes 1 and 10 occurred between 85-100 C, which can be attributed to the presence of crystallized water. 64,65 This type of broad peak is absent in complex 6 which shows a lack of crystallized water. The percentage weight loss obtained using TGA and the peaks present found using DTG conrms the amount of coordinated water molecules present in these complexes.…”

“…The decomposition of the sulfur containing organic moiety can be seen in the temperature range: 310-330 C, whereas the nitrogen and oxygen containing organic species decompose at temperatures above 600 C. Because the bond dissociation energy of Pr-O (796 kJ mol À1 ) is higher than that of the Pr-S (423 kJ mol À1 ), this is the reason for the dissociation of sulfur containing organic occurring earlier than the oxygen containing one. Because complex 1 has only one type of ligand in its coordination sphere, the decomposition and oxidation of the organic moiety 64,[66][67][68] from the anhydrous Pr complexes and oxidation of the Pr in Pr 2 O 3 occurred in one single step in these complexes, whereas in complex 6 and 10 these processes occur in two steps because of the presence of two types of coordinated ligands in these types of mixed ligand complexes of Pr.…”

Thermal Characteristics, Kinetic Models, and Volatile Constituents during the Energy Conversion of Bituminous SARA Fractions in Air

“…Therefore, DSC–MS is often utilized to investigate the thermal properties of various polymers . Not only the thermal effects of samples are studied but also the evolved gaseous products are identified and quantitatively analyzed . As a result, some researchers also used the DSC–MS technology to discuss the thermal properties of bituminous materials.…”