Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand

A dinuclear cobalt(II), [Co2(kappa(4)-O,O', N,N'-L)(2)(mu-O,O'-HCOO)](ClO4)center dot(C2H5)(2)O (1) and a linear mixed valence trinuclear manganese, [Mn-3(kappa(4)-O,O', N,N'-L)(2)(mu-CH3O)(2)(mu-O,O'-CH3COO)(2)]center dot 2(C2H5)(2)O (2) complexes with the ligand N-(2-...

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Authors: Davila, Ruben, Farias, Nicolas, Sañudo Zotes, Eva Carolina, Vega Carvallo, Andrés Igor, Escuer Fité, Albert, Soler, Mònica, Manzur, Jorge
Format: article
Status:Versión aceptada para publicación
Publication Date:2016
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/154363
Online Access:https://hdl.handle.net/2445/154363
Access Level:Open access
Keyword:Lligands
Radicals (Química)
Ligands
Radicals (Chemistry)
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spelling Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligandDavila, RubenFarias, NicolasSañudo Zotes, Eva CarolinaVega Carvallo, Andrés IgorEscuer Fité, AlbertSoler, MònicaManzur, JorgeLligandsRadicals (Química)LigandsRadicals (Chemistry)A dinuclear cobalt(II), [Co2(kappa(4)-O,O', N,N'-L)(2)(mu-O,O'-HCOO)](ClO4)center dot(C2H5)(2)O (1) and a linear mixed valence trinuclear manganese, [Mn-3(kappa(4)-O,O', N,N'-L)(2)(mu-CH3O)(2)(mu-O,O'-CH3COO)(2)]center dot 2(C2H5)(2)O (2) complexes with the ligand N-(2-pyridyl-methyl)-N, N-bis-[2'-hydroxy-5'-methyl-benzyl]-amine (H2L) are reported. For both complexes the ligand is present in the deprotonated form. The coordination sphere of the cobalt centres can be described as slightly distorted octahedral with two bridging O-phenoxo, one N-pyridine, one N-amine, one terminal O-phenoxo and one bridging O-formate donor atoms. Interestingly, the bridging formate resulted from the aerial oxidation of methanol. The manganese complex (2) has a linear mixed valence Mn-III-Mn-II-Mn-III, with the Mn-II and Mn-III centres bridged by alkoxo, carboxylate and phenoxo groups. Cyclic voltammetry studies show both metal and ligand centred redox processes consistent with the structure of the complexes. Complex (2) has an S = 3/2 ground state; magnetic susceptibility measurements indicate a weak antiferromagnetic interaction. The best fit of the magnetic susceptibility data as a function of temperature was obtained using a conventional trinuclear linear model [H = -2J(S1S2 + S1S3)] with J = -0.79 cm(-1) and g = 1.99.Royal Society of Chemistry2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/154363Articles publicats en revistes (Química Inorgànica i Orgànica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1039/c5nj03670dNew Journal of Chemistry, 2016, vol. 40, num. 7, p. 6164-6170https://doi.org/10.1039/c5nj03670d(c) Davila, Ruben et al., 2016info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1543632026-05-27T06:46:51Z
dc.title.none.fl_str_mv Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
title Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
spellingShingle Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
Davila, Ruben
Lligands
Radicals (Química)
Ligands
Radicals (Chemistry)
title_short Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
title_full Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
title_fullStr Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
title_full_unstemmed Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
title_sort Dinuclear cobalt(III) and mixed valence trinuclear Mn-III-Mn-II-Mn-III complexes with a tripodal bridging pyridylaminophenol ligand
dc.creator.none.fl_str_mv Davila, Ruben
Farias, Nicolas
Sañudo Zotes, Eva Carolina
Vega Carvallo, Andrés Igor
Escuer Fité, Albert
Soler, Mònica
Manzur, Jorge
author Davila, Ruben
author_facet Davila, Ruben
Farias, Nicolas
Sañudo Zotes, Eva Carolina
Vega Carvallo, Andrés Igor
Escuer Fité, Albert
Soler, Mònica
Manzur, Jorge
author_role author
author2 Farias, Nicolas
Sañudo Zotes, Eva Carolina
Vega Carvallo, Andrés Igor
Escuer Fité, Albert
Soler, Mònica
Manzur, Jorge
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Lligands
Radicals (Química)
Ligands
Radicals (Chemistry)
topic Lligands
Radicals (Química)
Ligands
Radicals (Chemistry)
description A dinuclear cobalt(II), [Co2(kappa(4)-O,O', N,N'-L)(2)(mu-O,O'-HCOO)](ClO4)center dot(C2H5)(2)O (1) and a linear mixed valence trinuclear manganese, [Mn-3(kappa(4)-O,O', N,N'-L)(2)(mu-CH3O)(2)(mu-O,O'-CH3COO)(2)]center dot 2(C2H5)(2)O (2) complexes with the ligand N-(2-pyridyl-methyl)-N, N-bis-[2'-hydroxy-5'-methyl-benzyl]-amine (H2L) are reported. For both complexes the ligand is present in the deprotonated form. The coordination sphere of the cobalt centres can be described as slightly distorted octahedral with two bridging O-phenoxo, one N-pyridine, one N-amine, one terminal O-phenoxo and one bridging O-formate donor atoms. Interestingly, the bridging formate resulted from the aerial oxidation of methanol. The manganese complex (2) has a linear mixed valence Mn-III-Mn-II-Mn-III, with the Mn-II and Mn-III centres bridged by alkoxo, carboxylate and phenoxo groups. Cyclic voltammetry studies show both metal and ligand centred redox processes consistent with the structure of the complexes. Complex (2) has an S = 3/2 ground state; magnetic susceptibility measurements indicate a weak antiferromagnetic interaction. The best fit of the magnetic susceptibility data as a function of temperature was obtained using a conventional trinuclear linear model [H = -2J(S1S2 + S1S3)] with J = -0.79 cm(-1) and g = 1.99.
publishDate 2016
dc.date.none.fl_str_mv 2016
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/2445/154363
url https://hdl.handle.net/2445/154363
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/10.1039/c5nj03670d
New Journal of Chemistry, 2016, vol. 40, num. 7, p. 6164-6170
https://doi.org/10.1039/c5nj03670d
dc.rights.none.fl_str_mv (c) Davila, Ruben et al., 2016
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Davila, Ruben et al., 2016
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 (Química Inorgànica i Orgànica)
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
_version_ 1869411852120752129
score 15,300724

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