Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Positive Homotropic Allosteric Receptors for Neutral Guests: Annulated Tetrathiafulvalene-Calix[4]pyrroles as Colorimetric Chemosensors for Nitroaromatic Explosives

Authors
Park, Jung SuLe Derf, FranckBejger, Christopher M.Lynch, Vincent M.Sessler, Jonathan L.Nielsen, Kent A.Johnsen, CarstenJeppesen, Jan O.
Issue Date
Jan-2010
Publisher
WILEY-V C H VERLAG GMBH
Citation
CHEMISTRY-A EUROPEAN JOURNAL, v.16, no.3, pp 848 - 854
Pages
7
Journal Title
CHEMISTRY-A EUROPEAN JOURNAL
Volume
16
Number
3
Start Page
848
End Page
854
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147974
DOI
10.1002/chem.200902924
ISSN
0947-6539
1521-3765
Abstract
The study of positive homotropic allosterism in supramolecular receptors is important for elucidating design strategies that can lead to increased sensitivity in various molecular recognition applications. In this work, the cooperative relationship between tetrathiafulvalene (TTF)-calix[4]pyrroles and several nitroaromatic guests is examined. The design and synthesis of new annulated TTF-calix[4]pyrrole receptors with the goal of rigidifying the system to accommodate better nitroaromatic guests is outlined. These new derivatives, which display significant improvement in terms of binding constants, also display a positive homotropic allosteric relationship, as borne out from the sigmoidal nature of the binding isotherms and analysis by using the Hill equation, Adair equation, and Scatchard plots. The host-guest complexes themselves have been characterized by single-crystal X-ray diffraction analyses and studied by means of UV-spectroscopic titrations. Investigations into the electronic nature of the receptors were made by using cyclic voltammetry; this revealed that the binding efficiency was not strictly related to the redox potential of the receptor. On the other hand, this work serves to illustrate how cooperative effects may be used to enhance the recognition ability of TTF-calix[4]pyrrole receptors. It has l
Files in This Item
Go to Link
Appears in
Collections
이과대학 > 화학과 > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Park, Jung Su photo

Park, Jung Su
이과대학 (화학과)
Read more

Altmetrics

Total Views & Downloads

BROWSE