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

Detalhes bibliográficos
Autor(a) principal: Pessêgo, Márcia
Data de Publicação: 2019
Outros Autores: Mendoza, Johan, Da Silva, José Paulo, Basílio, Nuno, Garcia-Rio, Luis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/97241
Resumo: 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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:44:25Zoai:run.unl.pt:10362/97241Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:38:42.028447Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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