Document Detail


Independent Pathway Formation of Guest:Host in Host Ternary Complexes Made of Ammonium Salt, Calixarene and Cyclodextrin.
MedLine Citation:
PMID:  23134424     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The interaction between gamma-cyclodextrin and amphiphilic p-sulfonatocalix[4]-arenes was studied using NMR and isothermal titration calorimetry techniques. The results indicate that this calixarenes are able to form 1:1, 1:2 and 2:1 host-guest complexes with the cyclodextrin. The ROESY spectra suggest that the cyclodextrin binds the calixarenes trough the hydrophobic alkyl chains. p-Sulfonatocalix[4]arenes, which are traditionally used as host molecules, act as guests in the presence of gamma-cyclodextrin. However, their recognition site remains active upon complexation with the cyclodextrin, and ternary complexes can be devised. Here, we also demonstrate the formation of such complexes using tetramethylammonium chloride as a model guest. Moreover, it is also demonstrated that the recognition properties of the calixarene are unaffected upon complexation with the cyclodextrin.
Authors:
Nuno Basilio; Vitor Francisco; Luis Garcia-Rio
Related Documents :
24030544 - Efficient photocatalytic hydrogen production in water using a cobalt(iii) tetraaza-macr...
25075314 - Type ii halogen···halogen contacts are halogen bonds.
23280974 - Analytical challenges in the quantitative determination of (2) h/(1) h ratios of methyl...
22950084 - A bifunctional luminescent single-ion magnet: towards correlation between luminescence ...
22277014 - (27)al and (29)si solid-state nmr characterization of calcium-aluminosilicate-hydrate.
20959934 - Development of an online citrate/ca(2+) sensing system for dialysis.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-8
Journal Detail:
Title:  The Journal of organic chemistry     Volume:  -     ISSN:  1520-6904     ISO Abbreviation:  J. Org. Chem.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985193R     Medline TA:  J Org Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Perceived Game Realism: A Test of Three Alternative Models.
Next Document:  Signaling Pathways Involved in Endoplasmic Reticulum Stress- Induced Neuronal Apoptosis.