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Quantum chemical study on gas phase pyrolysis of p-isopropenylphenol

Mohan Verma, Anand, Kawale, Harshal D., Agrawal, Kushagra and Kishore, Nanda 2018. Quantum chemical study on gas phase pyrolysis of p-isopropenylphenol. Journal of Molecular Graphics and Modelling 81 , pp. 134-145. 10.1016/j.jmgm.2018.02.018

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In the pyrolysis of Sphagnum moss species, p-isopropenylphenol (p-IPP) is a major product which has been considered in this density functional theory based computational study for its conversion to various products such as benzene, phenol, 4-propenylphenol, indan-5-ol, 4-propylcyclohexanone, 4-cyclopropylphenol, etc. In order to achieve these products, eight different reaction schemes are performed using B3LYP/6–311 + g (d,p) level of theory. Further, thermodynamic properties such as reaction free energies and reaction enthalpies associated with these eight reaction schemes are developed in the temperature range of 298–898 K. The reaction schemes that include partial hydrogenation of the aromatic carbon followed by elimination of functional groups are found to demand low activation energy. The production of benzene from p-IPP with isopropenylbenzene as an intermediate product requiring only 19.83 kcal/mol of activation energy is the rate limiting reaction step. Indan-5-ol produced from p-IPP is validated with the literature results and found excellent agreement between two results. Furthermore, the temperature is found to have phenomenal effect in each reaction scheme.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Elsevier
ISSN: 1093-3263
Date of Acceptance: 19 February 2018
Last Modified: 09 Mar 2023 11:45

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