Binding affinity of aniline-substituted dodecaborates to cyclodextrins

A new set of hybrid guest molecules bearing organic and inorganic residues have been studied for their recognition by cyclodextrins in aqueous solution. The guest molecules consist of nitroanilines linked through their amino group to the dodecahydrido- -dodecaborate cluster B H , which serves as an...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2022-02, Vol.58 (14), p.2363-2366
Hauptverfasser:	Marei, Tarek, Al-Joumhawy, Mahmoud K, Alnajjar, Mohammad A, Nau, Werner M, Assaf, Khaleel I, Gabel, Detlef
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption spectra Affinity Aniline Aqueous solutions Charge transfer Clusters Cyclodextrins
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creator	Marei, Tarek Al-Joumhawy, Mahmoud K Alnajjar, Mohammad A Nau, Werner M Assaf, Khaleel I Gabel, Detlef
description	A new set of hybrid guest molecules bearing organic and inorganic residues have been studied for their recognition by cyclodextrins in aqueous solution. The guest molecules consist of nitroanilines linked through their amino group to the dodecahydrido- -dodecaborate cluster B H , which serves as an anchor group. They show sizable affinity to cyclodextrins, and unexpected photophysical properties, with a very strong and low-energy charge-transfer band. The dodecaborate cluster increases the p of the anilines by 5.0 to 5.7 pH units, and the deprotonated forms of the - and -nitroaniline derivatives show strong charge transfer absorption bands in the visible part of the spectrum.
doi_str_mv	10.1039/d1cc06524f
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source	Royal Society Of Chemistry Journals; Alma/SFX Local Collection
subjects	Absorption spectra Affinity Aniline Aqueous solutions Charge transfer Clusters Cyclodextrins
title	Binding affinity of aniline-substituted dodecaborates to cyclodextrins
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