Preprint Communication Version 2 Preserved in Portico This version is not peer-reviewed

Alkaline Fading of Malachite Green in β-Cyclodextrins

Version 1 : Received: 17 October 2023 / Approved: 18 October 2023 / Online: 18 October 2023 (09:47:24 CEST)
Version 2 : Received: 31 October 2023 / Approved: 1 November 2023 / Online: 1 November 2023 (10:43:54 CET)

A peer-reviewed article of this Preprint also exists.

Soria-Lopez, A.; Rodriguez-Fernández, R.; Mejuto, J.C. Alkaline Fading of Malachite Green in β-Cyclodextrins. Compounds 2024, 4, 351-360. Soria-Lopez, A.; Rodriguez-Fernández, R.; Mejuto, J.C. Alkaline Fading of Malachite Green in β-Cyclodextrins. Compounds 2024, 4, 351-360.

Abstract

The basic hydrolysis of Malachite Green in the presence of β-Cyclodextrin has been studied and a catalytic effect has been found. Indeed, this basic hydrolysis is catalyzed by the interaction of deprotonated cyclodextrin hydroxyl group with the carbocation in the host-guest complex. This behavior is like the hydrolysis of Cristal Violet in the same reaction media.

Keywords

basic hydrolysis; alkaline fading; cyclodextrin; host-guest complex; catalysis

Subject

Chemistry and Materials Science, Physical Chemistry

Comments (1)

Comment 1
Received: 1 November 2023
Commenter: Juan Mejuto
Commenter's Conflict of Interests: Author
Comment: Results on the influence of ionic strength on basic hydrolysis have been added. New equations, two new figures and two new bibliographic references have been included.
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