High-affinity host–guest complex of cucurbit[7]uril with a bis(thiazolium) salt

RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 56110-56115 ◽  
Author(s):  
Shengke Li ◽  
Xiaoqing Miao ◽  
Ian W. Wyman ◽  
Ye Li ◽  
Ying Zheng ◽  
...  
Keyword(s):  
Guest Complex ◽  
High Affinity ◽  
Host Guest Complex ◽  
The Stability

The stability of a bis(thiazolium) dication was improved upon inclusion by cucurbit[7]uril, as demonstrated by the slowed-down C(2)-H/D exchange.

scholarly journals Host-Guest Complexations of Amine Boranes and Isoelectronic/Isostructural Quaternary Alkylammonium Cations by Cucurbit[7]uril in Aqueous Solution

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Mona A. Gamal-Eldin ◽  
Donal H. Macartney
Keyword(s):  
Aqueous Solution ◽  
Hydrophobic Effect ◽  
Host Molecule ◽  
Guest Complex ◽  
H Nmr ◽  
Hydrophobic Cavity ◽  
Host Guest Complex ◽  
Dipole Interactions ◽  
The Stability ◽  
Amine Boranes

The host-guest complexation of six amine boranes (R3NBH3) by the macrocyclic host molecule cucurbit[7]uril (CB[7]) in aqueous solution has been investigated using 1H and 11B NMR spectroscopy. The limiting complexation-induced 1H and 11B chemical shift changes indicate that the amine boranes are included in the hydrophobic cavity of the host molecule. The host-guest stability constants for neutral  R3NBH3∙CB[7]  complexes (in the range of 105-107M-1) have been determined by 1H NMR competition experiments and are compared with the corresponding values for the isoelectronic/isostructural  R3NCH3∙CB[7] + complexes. Ammonia borane (H3NBH3) does not form a host-guest complex with CB[7]. The trends in the host-guest stability constant with the guest molar volume are examined, and the stability is ascribed to the hydrophobic effect (packing coefficient) and quadrupole-dipole interactions.

A supramolecular red to near-infrared fluorescent probe for the detection of drugs in urine

2018 ◽  
Vol 16 (40) ◽  
pp. 7425-7429 ◽  
Author(s):  
Gyan H. Aryal ◽  
Kenneth W. Hunter ◽  
Liming Huang
Keyword(s):  
Fluorescent Probe ◽  
Near Infrared ◽  
Stokes Shift ◽  
Guest Complex ◽  
Large Stokes Shift ◽  
High Affinity ◽  
Host Guest Complex ◽  
Nir Emission ◽  
Perylene Dye

A host–guest complex based on a newly designed and synthesized cationic perylene dye and cucurbit[8]uril exhibits red-NIR emission, high affinity and stability, and large Stokes shift. It can serve as a red-NIR fluorescent displacement probe for the detection of drugs in urine.

Illustration of a computational pipeline for evaluating cyclodextrin host–guest complex formation through conformational capture of bullvalene

2021 ◽  
Vol 154 (15) ◽  
pp. 154105
Author(s):  
Zahra Shadfar ◽  
Oussama Yahiaoui ◽  
Thomas A. Collier ◽  
Thomas Fallon ◽  
Jane R. Allison
Keyword(s):  
Complex Formation ◽  
Computational Pipeline ◽  
Guest Complex ◽  
Host Guest Complex

Contribution of RNA Conformation to the Stability of a High-Affinity RNA−Protein Complex

2000 ◽  
Vol 122 (29) ◽  
pp. 7130-7131 ◽  
Author(s):  
Sarah J. Luchansky ◽  
Scott J. Nolan ◽  
Anne M. Baranger
Keyword(s):  
Protein Complex ◽  
High Affinity ◽  
Rna Conformation ◽  
The Stability

scholarly journals Hydrolysis and Inhibition Profiles of β-Lactamases from Molecular Classes A to D with Doripenem, Imipenem, and Meropenem

2009 ◽  
Vol 54 (1) ◽  
pp. 565-569 ◽  
Author(s):  
Anne Marie Queenan ◽  
Wenchi Shang ◽  
Robert Flamm ◽  
Karen Bush
Keyword(s):  
High Affinity ◽  
Extended Spectrum ◽  
The Stability

ABSTRACT The stability of doripenem to hydrolysis by β-lactamases from molecular classes A to D was compared to the stability for imipenem and meropenem. Doripenem was stable to hydrolysis by extended-spectrum β-lactamases and AmpC type β-lactamases and demonstrated high affinity for the AmpC enzymes. For the serine carbapenemases SME-3 and KPC-2 and metallo-β-lactamases IMP-1 and VIM-2, doripenem hydrolysis was generally 2- to 150-fold slower than imipenem hydrolysis. SPM-1 hydrolyzed meropenem and doripenem fourfold faster than imipenem.

Fast Guest Exchange of a 1:1 Zinc Porphyrin–Amine Host–Guest Complex via a Six-Coordinated Zinc Porphyrin

2010 ◽  
Vol 83 (8) ◽  
pp. 950-952 ◽  
Author(s):  
Yutaka Hitomi ◽  
Junya Ohyama ◽  
Minori Takegoshi ◽  
Akira Ando ◽  
Takuzo Funabiki ◽  
...  
Keyword(s):  
Guest Complex ◽  
Zinc Porphyrin ◽  
Host Guest Complex

Probing Multivalent Interactions in a Synthetic Host–Guest Complex by Dynamic Force Spectroscopy

2011 ◽  
Vol 133 (28) ◽  
pp. 10849-10857 ◽  
Author(s):  
Alberto Gomez-Casado ◽  
Henk H. Dam ◽  
M. Deniz Yilmaz ◽  
Daniel Florea ◽  
Pascal Jonkheijm ◽  
...  
Keyword(s):  
Force Spectroscopy ◽  
Dynamic Force ◽  
Guest Complex ◽  
Dynamic Force Spectroscopy ◽  
Host Guest Complex ◽  
Multivalent Interactions

Host−Guest Complex Dependent Regioselectivity in Substitution Reactions of Chlorocyclotriphosphazene-Containing PNP-Crowns with Alkylenediamines

1997 ◽  
Vol 119 (5) ◽  
pp. 1143-1144 ◽  
Author(s):  
Krystyna Brandt ◽  
Iwona Porwolik ◽  
Mariola Siwy ◽  
Teobald Kupka ◽  
Robert A. Shaw ◽  
...  
Keyword(s):  
Substitution Reactions ◽  
Guest Complex ◽  
Host Guest Complex

scholarly journals Enhanced photocatalytic activity of gold nanoparticles driven by supramolecular host–guest chemistry

2017 ◽  
Vol 53 (13) ◽  
pp. 2126-2129 ◽  
Author(s):  
Marc Padilla ◽  
Francesca Peccati ◽  
José Luis Bourdelande ◽  
Xavier Solans-Monfort ◽  
Gonzalo Guirado ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Photocatalytic Activity ◽  
Complex Formation ◽  
Guest Complex ◽  
Host Guest Complex ◽  
Photocatalytic Activities ◽  
Guest Chemistry

Gold nanoparticles coated with cyclodextrins show enhanced plasmon-based photocatalytic activities by promoting catalyst–reactant approximationviasupramolecular host–guest complex formation.

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