Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes

Among the group 12 metal ions, the Cd(II) ion presents an ionic radius comparable to that of Hg(II), while its electronegativity resembles that of Zn(II). Thus, these characteristics make it a suitable candidate for the synthesis of fluorescent coordination complexes given that it tends to maximize...

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Autores: Ejarque, Daniel, Calvet Pallàs, Maria Teresa, Font Bardia, Ma. Mercedes, Pons, Josefina
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2022
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/208825
Acesso em linha:https://hdl.handle.net/2445/208825
Access Level:acceso abierto
Palavra-chave:Cristalls
Cristal·lografia
Estructura cristal·lina (Sòlids)
Crystals
Crystallography
Layer structure (Solids)
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spelling Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexesEjarque, DanielCalvet Pallàs, Maria TeresaFont Bardia, Ma. MercedesPons, JosefinaCristallsCristal·lografiaEstructura cristal·lina (Sòlids)CrystalsCrystallographyLayer structure (Solids)Among the group 12 metal ions, the Cd(II) ion presents an ionic radius comparable to that of Hg(II), while its electronegativity resembles that of Zn(II). Thus, these characteristics make it a suitable candidate for the synthesis of fluorescent coordination complexes given that it tends to maximize the chelation enhanced effect (CHEF), while its electronegativity helps to prevent the quenching of fluorescence generated by the heavy atom effect. Accordingly, herein, we performed a systematic study using Cd(II) compounds bearing α-acetamidocinnamic acid (HACA) and different N-, N^N- and N^N^N-pyridine ligands (dPy), namely pyridine (py) (1), 3-phenylpyridine (3-phpy) (2), 2,2′-bipyridine (2,2′-bipy) (3), 1,10-phenantroline (1,10-phen) (4) and 2,2′:6′,2′′-terpyridine (terpy) (5). The elucidation of their crystal structures revealed the formation of one coordination polymer (1), one dimer (3) and three monomers (2, 4, and 5). All the synthesized compounds were characterized via analytical and spectroscopic techniques, and their molecular and supramolecular structures were discussed. The photophysical properties of 1–5 in MeOH were studied and their quantum yields (Φ) were calculated, revealing an enhancement in the Φ value of the complexes generated by the CHEF of dPy.Royal Society of Chemistry2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/208825Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/https://doi.org/10.1039/D1CE01584BCrystengcomm, 2022, vol. 24, num.15, p. 2808-2824https://doi.org/https://doi.org/10.1039/D1CE01584B(c) Ejarque, D. et al., 2022info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2088252026-05-27T06:46:51Z
dc.title.none.fl_str_mv Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
title Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
spellingShingle Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
Ejarque, Daniel
Cristalls
Cristal·lografia
Estructura cristal·lina (Sòlids)
Crystals
Crystallography
Layer structure (Solids)
title_short Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
title_full Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
title_fullStr Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
title_full_unstemmed Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
title_sort Influence of a series of pyridine ligands on the structure and photophysical properties of Cd(II) complexes
dc.creator.none.fl_str_mv Ejarque, Daniel
Calvet Pallàs, Maria Teresa
Font Bardia, Ma. Mercedes
Pons, Josefina
author Ejarque, Daniel
author_facet Ejarque, Daniel
Calvet Pallàs, Maria Teresa
Font Bardia, Ma. Mercedes
Pons, Josefina
author_role author
author2 Calvet Pallàs, Maria Teresa
Font Bardia, Ma. Mercedes
Pons, Josefina
author2_role author
author
author
dc.subject.none.fl_str_mv Cristalls
Cristal·lografia
Estructura cristal·lina (Sòlids)
Crystals
Crystallography
Layer structure (Solids)
topic Cristalls
Cristal·lografia
Estructura cristal·lina (Sòlids)
Crystals
Crystallography
Layer structure (Solids)
description Among the group 12 metal ions, the Cd(II) ion presents an ionic radius comparable to that of Hg(II), while its electronegativity resembles that of Zn(II). Thus, these characteristics make it a suitable candidate for the synthesis of fluorescent coordination complexes given that it tends to maximize the chelation enhanced effect (CHEF), while its electronegativity helps to prevent the quenching of fluorescence generated by the heavy atom effect. Accordingly, herein, we performed a systematic study using Cd(II) compounds bearing α-acetamidocinnamic acid (HACA) and different N-, N^N- and N^N^N-pyridine ligands (dPy), namely pyridine (py) (1), 3-phenylpyridine (3-phpy) (2), 2,2′-bipyridine (2,2′-bipy) (3), 1,10-phenantroline (1,10-phen) (4) and 2,2′:6′,2′′-terpyridine (terpy) (5). The elucidation of their crystal structures revealed the formation of one coordination polymer (1), one dimer (3) and three monomers (2, 4, and 5). All the synthesized compounds were characterized via analytical and spectroscopic techniques, and their molecular and supramolecular structures were discussed. The photophysical properties of 1–5 in MeOH were studied and their quantum yields (Φ) were calculated, revealing an enhancement in the Φ value of the complexes generated by the CHEF of dPy.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/208825
url https://hdl.handle.net/2445/208825
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/https://doi.org/10.1039/D1CE01584B
Crystengcomm, 2022, vol. 24, num.15, p. 2808-2824
https://doi.org/https://doi.org/10.1039/D1CE01584B
dc.rights.none.fl_str_mv (c) Ejarque, D. et al., 2022
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Ejarque, D. et al., 2022
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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