Temat: gravimetric analysis - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Synthesis and thermal decomposition study of some dihydropyridine derivatives
Autorzy:: Baluja, Shipra
Talaviya, Rahul
Powiązania:: https://bibliotekanauki.pl/articles/1192993.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: differential scanning calorimetry
dihydropyridine derivatives
thermo gravimetric analysis
Opis:: Some new dihydropyridine derivatives have been synthesized and their characterization was done by FT-IR, 1H NMR and Mass spectral data. Thermal analysis of these dihydropyridine derivatives have been carried out by thermao gravimetric (TG), differential thermal analysis (DTA) and differential scanning calorimetry (DSC) techniques. Further, from thermograms of these compounds, various kinetic parameters such as order of reaction (n), energy of activation (E), frequency factor (A) and entropy change (∆S) have been evaluated. The obtained results indicates that thermal stability of dihydropyridine derivatives have been depend on the type of substituent present in the compounds.
Źródło:: World Scientific News; 2016, 39; 1-16
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Synthesis and characterization of transition metal complexes of some novel pyrazolo-chalcone derivatives
Autorzy:: Odedra, Pratap
Rojivadiya, A. J.
Powiązania:: https://bibliotekanauki.pl/articles/1066234.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Pyrazolochalcone derivatives
Thermal gravimetric analysis
Transition metal complexes
Opis:: Some novel pyrazolo-chalcone molecules were synthesized by condensation of pyrzolo aldehyde with appropriate acetophenone. The synthesis of some metal complexes of transition metal was carried out with these pyrazoleo heterocyclic compounds. Each metal complex was synthesized by the reaction of new pyrazolochalcone derivatives with the metal salts such as Co(CH3COO)2·6H2O, Ni(CH3COO)2·6H2O, and Cu(CH3COO)2·2H2O. For the structure elucidation of ligand molecule various spectroscopic techniques such as 1H NMR, IR and mass has been used. The synthesized metal complexes were subjected to thermal study i.e., TGA and DTA in order to check structural conformation of synthesized metal complexes.
Źródło:: World Scientific News; 2019, 131; 242-255
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Synthesis and thermal decomposition kinetics of some pyrazolo-quinazoline derivatives
Autorzy:: Baluja, Shipra
Nandha, Kajal
Powiązania:: https://bibliotekanauki.pl/articles/1193006.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Pyrazolo-quinazolines
chalcones
differential scanning calorimetry
kinetic parameters
thermal gravimetric analysis
thermal stability
Opis:: Some new pyrazolo-quinazolines have been synthesized and characterization of the synthesized was done by IR, NMR and mass spectral data. The thermal properties of some synthesized compounds were studied by TGA and DSC methods. From the thermo grams, thermal stability and some kinetic parameters such as energy of activation, frequency factor, order of reaction and entropy of activation were evaluated. It is observed that for all the studied compounds, degradation is single step process. Thermal stability varies slightly according to the nature and position of the substitutions present in the studied compounds.
Źródło:: World Scientific News; 2016, 31; 100-110
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

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