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A thermochemical parameters and theoretical study of the chlorinated compounds of thiophene

Saraireh, I.A.M., Altarawneh, M.ORCID: 0000-0002-2832-3886, Alhawarin, J. and Almatarneh, M.H. (2019) A thermochemical parameters and theoretical study of the chlorinated compounds of thiophene. Heteroatom Chemistry, 2019 . pp. 1-6.

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This contribution sets out to compute thermochemical and geometrical parameters of the complete series of chlorinated isomers of thiophene based on the accurate chemistry model of CBS-QB3. Herein, we compute standard entropies, standard enthalpies of formation, standard Gibbs free energies of formation, and heat capacities. Our calculated enthalpy values agree with available limited experimental values. The DFT-based reactivity descriptors were used to elucidate the site selectivity for the chlorination sequence of thiophene. The relative preference for chlorination was found to be in accord with the thermodynamic stability trends inferred based on the H scale. Calculated Fukui indices predict a chlorination sequence to ensue as follows: 2-chloro → 2,5-dichloro → 2,3,5-trichloro → 2,3,4,5-tetrachlorothiophene.

Item Type: Journal Article
Murdoch Affiliation(s): School of Engineering and Information Technology
Publisher: Hindawi Publishing
Copyright: © 2019 Ibrahim A. M. Saraireh et al.
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