Influence of degree of substitution on the host-guest inclusion complex between ionic liquid substituted β-cyclodextrins with 2,4-dichlorophenol: An electrochemical, NMR and molecular docking studies

Rasdi, Fairuz Liyana Mohd and Rahim, Nurul Yani and Hasim, Fara Wahida and Prabu, Samikannu and Jumbri, Khairulazhar and Manan, Ninie Suhana Abdul and Mohamad, Sharifah (2019) Influence of degree of substitution on the host-guest inclusion complex between ionic liquid substituted β-cyclodextrins with 2,4-dichlorophenol: An electrochemical, NMR and molecular docking studies. Journal of Molecular Liquids, 292. p. 111334. ISSN 0167-7322, DOI https://doi.org/10.1016/j.molliq.2019.111334.

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Official URL: https://doi.org/10.1016/j.molliq.2019.111334

Abstract

A mono- and di-substituted ionic liquid-β-cyclodextrin (β-CD-ILs) were synthesized and their host-guest inclusion complex with 2, 4-dichlorophenol (2,4-DCP) were evaluated by electrochemical study. First, both β-CD-ILs which is β-CD-1-BIMOTs and β-CD-2-BIMOTs were fabricated on carbon paste electrode (CPE) for determination of 2,4-DCP. The cyclic voltammetry results indicate that both β-CD-IL/CPEs exhibit higher oxidation peak current compared to native β-CD/CPE. Both complexes possess high sensitivity, stability and reproducibility. However, as the degree of substitution of ionic liquid (IL) increases, the selectivity of β-CD-IL towards 2,4-DCP decreases. Thus, it can be deduced that the degree of substitution of IL is influencing the host-guest inclusion complex of β-CD-ILs with 2,4-DCP. © 2019 Elsevier B.V.

Item Type: Article
Funders: UMRG Projects ( RP020-16SUS and RP011B-14SUS ), PPP grant: PG050-2014B from University of Malaya, Ministry of Education Malaysia for My-Brain (My-PhD) scholarship given to a student named Fairuz Liyana Mohd Rasdi ( SHC140048 )
Uncontrolled Keywords: Ionic liquid-β-cyclodextrin; 2;4-dichlorophenol; Carbon paste electrode; Inclusion complex; NOESY analysis; Molecular docking
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 06 Feb 2020 00:43
Last Modified: 06 Feb 2020 00:43
URI: http://eprints.um.edu.my/id/eprint/23679

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