Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative

Bibliographic Details
Main Author: Pessêgo, Márcia
Publication Date: 2019
Other Authors: Mendoza, Johan, Da Silva, José Paulo, Basílio, Nuno, Garcia-Rio, Luis
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10362/97241
Summary: This work was supported by the FCT (Portugal), MICINN (Spain) and ERDF through grants UID/QUI/50006/2019; UID/Multi/04326/2019; ALG-01-0145-FEDER-022121 PTDC/QUI-COL/32351/2017; CEECIND/00466/2017; CTQ2017284354-P; GR 2007/085; IN607C 2016/03 and ED431G/09.
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spelling Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivativeCatalysisElectronic, Optical and Magnetic MaterialsCeramics and CompositesChemistry(all)Surfaces, Coatings and FilmsMetals and AlloysMaterials ChemistryThis work was supported by the FCT (Portugal), MICINN (Spain) and ERDF through grants UID/QUI/50006/2019; UID/Multi/04326/2019; ALG-01-0145-FEDER-022121 PTDC/QUI-COL/32351/2017; CEECIND/00466/2017; CTQ2017284354-P; GR 2007/085; IN607C 2016/03 and ED431G/09.The formation of host-guest complexes between cucurbit[7]uril (CB7) and a tetracationic calix[4]arene derivative in the so-called cone conformation was investigated by 1H NMR, DOSY NMR, isothermal titration calorimetry and ESI-MS. The results point to the formation of 1 : 1, 1 : 2 and 2 : 1 CB7 : calixarene complexes with binding constants of 3 × 106 M-1, ≈2 × 102 M-1, and 9 × 104 M-1 respectively. The study demonstrates, on one hand, that despite having four potential recognition sites, the calixarene only binds two CB7 molecules and, on the other, that for sterically crowded binding motifs that prevent CB7 inclusion with optimized hydrophobic and ion-dipole interactions, the formation of 1 : 2 complexes can be observed most likely due to formation of external binding of the cationic moieties to the CB7 carbonyl portals.LAQV@REQUIMTEDQ - Departamento de QuímicaRUNPessêgo, MárciaMendoza, JohanDa Silva, José PauloBasílio, NunoGarcia-Rio, Luis2020-05-05T23:01:47Z2019-01-012019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4application/pdfhttp://hdl.handle.net/10362/97241eng1359-7345PURE: 16261842https://doi.org/10.1039/c9cc07280binfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T17:45:12Zoai:run.unl.pt:10362/97241Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:16:29.797537Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
title Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
spellingShingle Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
Pessêgo, Márcia
Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry
title_short Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
title_full Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
title_fullStr Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
title_full_unstemmed Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
title_sort Unveiling the formation 1 : 2 supramolecular complexes between cucurbit[7]uril and a cationic calix[4]arene derivative
author Pessêgo, Márcia
author_facet Pessêgo, Márcia
Mendoza, Johan
Da Silva, José Paulo
Basílio, Nuno
Garcia-Rio, Luis
author_role author
author2 Mendoza, Johan
Da Silva, José Paulo
Basílio, Nuno
Garcia-Rio, Luis
author2_role author
author
author
author
dc.contributor.none.fl_str_mv LAQV@REQUIMTE
DQ - Departamento de Química
RUN
dc.contributor.author.fl_str_mv Pessêgo, Márcia
Mendoza, Johan
Da Silva, José Paulo
Basílio, Nuno
Garcia-Rio, Luis
dc.subject.por.fl_str_mv Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry
topic Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry
description This work was supported by the FCT (Portugal), MICINN (Spain) and ERDF through grants UID/QUI/50006/2019; UID/Multi/04326/2019; ALG-01-0145-FEDER-022121 PTDC/QUI-COL/32351/2017; CEECIND/00466/2017; CTQ2017284354-P; GR 2007/085; IN607C 2016/03 and ED431G/09.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
2019-01-01T00:00:00Z
2020-05-05T23:01:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/97241
url http://hdl.handle.net/10362/97241
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1359-7345
PURE: 16261842
https://doi.org/10.1039/c9cc07280b
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 4
application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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