European Journal of Chemistry

Synthesis, characterization and thermal decomposition of 2’-amino-6’-(1H-indol-3-yl)-1-methyl-2-oxospiro-[indoline-3,4’-pyran]-3’,5’-dicarbonitrile under non-isothermal condition in nitrogen atmosphere

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Published: Sep 30, 2016
DOI: https://doi.org/10.5155/eurjchem.7.3.380-386.1442
Keywords:
Spirooxindole, Coats-Redfern method, Thermal decomposition, Flynn-Wall-Ozawa method, Thermodynamic parameters, Kissinger-Akahira-Sunose method
Section
Research Article
Issue
Vol. 7 No. 3 (2016): September 2016
Dates
Received 2016-04-24
Accepted 2016-05-21
Published 2016-09-30


Main Article Content

Ganesan Nalini
Department of Chemistry, Pachaiyappa’s College, Chennai, 600030, India
Natesan Jayachandramani
Department of Chemistry, Pachaiyappa’s College, Chennai, 600030, India
Radhakrishnan Suresh
Department of Chemistry, Presidency College, Chennai, 600005, India
Venugopal Thanikachalam
Department of Chemistry, Annamalai University, Annamalainagar, 608002, India
Govindasamy Manikandan
Department of Chemistry, Annamalai University, Annamalainagar, 608002, India

Abstract

The kinetics and decomposition of a new spirooxindole compound, 2’-amino-6’-(1H-indol-3-yl)-1-methyl-2-oxospiro[indoline-3,4’-pyran]-3’,5’-dicarbonitrile was studied by thermo gravimetric technique under non-isothermal conditions. The kinetic parameters were calculated using model-free (Friedman, Kissinger-Akahira-Sunose and Flynn-Wall-Ozawa methods) and model-fitting (Coats-Redfern) methods. The results of the Friedman isoconversional analysis of the thermo gravimetric data suggested that the investigated decomposition process follows a single-step.


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Nalini, G.; Jayachandramani, N.; Suresh, R.; Thanikachalam, V.; Manikandan, G. Synthesis, Characterization and Thermal Decomposition of 2’-Amino-6’-(1H-Indol-3-Yl)-1-Methyl-2-Oxospiro-[indoline-3,4’-Pyran]-3’,5’-Dicarbonitrile under Non-Isothermal Condition in Nitrogen Atmosphere. Eur. J. Chem. 2016, 7, 380-386.

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