Highly Efficient and Selective Recognition of Dicyanoaurate(I) by a Bambusuril Macrocycle in Water
Status PubMed-not-MEDLINE Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu časopisecké články
Grantová podpora
GA20-13922S
Grantová Agentura České Republiky
LM2018121
Ministerstvo Školství, Mládeže a Tělovýchovy
CZ.02.1.01/0.0/0.0/17_043/0009632
Ministerstvo Školství, Mládeže a Tělovýchovy
LM2018127
Ministerstvo Školství, Mládeže a Tělovýchovy
857560
H2020 Research Infrastructures
PubMed
36056559
DOI
10.1002/anie.202210184
Knihovny.cz E-zdroje
- Klíčová slova
- Anion Binding, Bambusurils, Dicyanoaurate, Gold Extraction, Host-Guest Complexes,
- Publikační typ
- časopisecké články MeSH
Dicyanoaurate(I) anion, [Au(CN)2 ]- , plays a central role in the current industrial production of gold, as its extraction from crude ore samples represents the most money-consuming step. Herein, we present the strongest host-guest recognition of dicyanoaurate anion using the bambusuril receptor in water, a highly competitive solvent. The micromolar stability of such a complex facilitated the up to date most efficient supramolecular stripping of dicyanoaurate from activated carbon at ambient temperature. Thermodynamic characteristics of bambusuril binding with [Au(CN)2 ]- differing from binding of other inorganic chaotropic anions are rationalized, as well as the bambusuril selectivity for [Au(CN)2 ]- over [Ag(CN)2 ]- .
Department of Chemistry Faculty of Science Masaryk University Kamenice 5 62500 Brno Czech Republic
RECETOX Faculty of Science Masaryk University Kamenice 5 62500 Brno Czech Republic
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Materials utilizing supramolecular host-guest binding for gold extraction
Synthesis of Enantiomerically Pure Bambus[6]urils Utilizing Orthogonal Protection of Glycolurils
