Modes of Micromolar Host-Guest Binding of beta-Cyclodextrin Complexes Revealed by NMR Spectroscopy in Salt Water

Kód výsledku v IS VaVaI

RIV/00216224:14740/21:00118870 - isvavai.cz

Nalezeny alternativní kódy

RIV/70883521:28110/21:63528818

Výsledek na webu

https://doi.org/10.1021/acs.joc.0c02917

DOI - Digital Object Identifier

10.1021/acs.joc.0c02917

Jazyk výsledku

angličtina

Název v původním jazyce

Modes of Micromolar Host-Guest Binding of beta-Cyclodextrin Complexes Revealed by NMR Spectroscopy in Salt Water

Popis výsledku v původním jazyce

Multitopic supramolecular guests with finely tuned affinities toward widely explored cucurbit[n]urils (CBs) and cyclodextrins (CDs) have been recently designed and tested as functional components of advanced supramolecular systems. We employed various spacers between the adamantane cage and a cationic moiety as a tool for tuning the binding strength toward CB7 to prepare a set of model guests with K(CB7) and K(beta-CD) values of (0.6–5.0) × 1010 M–1 and (0.6–2.6) × 106 M–1, respectively. These accessible adamantylphenyl-based binding motifs open a way toward supramolecular components with an outstanding affinity toward beta-cyclodextrin. 1H NMR experiments performed in 30% CaCl2/D2O at 273 K along with molecular dynamics simulations allowed us to identify two arrangements of the guest@beta-CD complexes. The approach, joining experimental and theoretical methods, provided a better understanding of the structure of cyclodextrin complexes and related molecular recognition, which is highly important for the rational design of drug delivery systems, molecular sensors and switches.

Název v anglickém jazyce

Modes of Micromolar Host-Guest Binding of beta-Cyclodextrin Complexes Revealed by NMR Spectroscopy in Salt Water

Popis výsledku anglicky

Multitopic supramolecular guests with finely tuned affinities toward widely explored cucurbit[n]urils (CBs) and cyclodextrins (CDs) have been recently designed and tested as functional components of advanced supramolecular systems. We employed various spacers between the adamantane cage and a cationic moiety as a tool for tuning the binding strength toward CB7 to prepare a set of model guests with K(CB7) and K(beta-CD) values of (0.6–5.0) × 1010 M–1 and (0.6–2.6) × 106 M–1, respectively. These accessible adamantylphenyl-based binding motifs open a way toward supramolecular components with an outstanding affinity toward beta-cyclodextrin. 1H NMR experiments performed in 30% CaCl2/D2O at 273 K along with molecular dynamics simulations allowed us to identify two arrangements of the guest@beta-CD complexes. The approach, joining experimental and theoretical methods, provided a better understanding of the structure of cyclodextrin complexes and related molecular recognition, which is highly important for the rational design of drug delivery systems, molecular sensors and switches.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

The Journal of Organic Chemistry

ISSN

0022-3263

e-ISSN

1520-6904

Svazek periodika

86

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

4483-4496

Kód UT WoS článku

000631442900012

EID výsledku v databázi Scopus

2-s2.0-85103311257