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Homo-and heteropolymetallic 3-(2-pyridyl)pyrazolate manganese and rhenium complexes

2014Journal article Restricted access
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dc.contributor.authorArroyo, Marta
dc.contributor.authorGomez-Iglesias, Patricia
dc.contributor.authorAnton, Noelia
dc.contributor.authorGarcia-Rodriguez, Raul
dc.contributor.authorAlegria, Elisabete
dc.contributor.authorPombeiro, Armando
dc.contributor.authorMiguel, Daniel
dc.contributor.authorVillafane, Fernando
dc.date.accessioned2015-08-24T11:30:12Z
dc.date.available2015-08-24T11:30:12Z
dc.date.issued2014
dc.description.abstractfac-[MBr(CO)(3)(pypzH)] (M = Mn, Re; pypzH = (3-(2-pyridyl) pyrazole) complexes are prepared from fac[ MBr(CO)(3)(NCMe)(2)] and pypzH. The result of their deprotonation depends on the metallic substrate: the rhenium complex affords cleanly the bimetallic compound [fac-{Re(CO)(3)(mu(2)-pypz)}] 2 (mu(2)-pypz = mu(2)-3-(2pyridyl-. 1N) pyrazolate-2. 1N), which was crystallographically characterized, whereas a similar manganese complex was not detected. When two equivalents of pyridylpyrazolate are used, polymetallic species [fac-M(CO) 3(mu(2)-pypz)(mu(3)-pypz) M'] (mu(3)-pypz = mu(3)-3-(2-pyridyl-kappa N-1) pyrazolate-1 kappa 2N, N: 2. 1N:; M = Mn, M' = Li, Na, K; M = Re, M' = Na) are obtained. The crystal structures of the manganese carbonylate complexes were determined. The lithium complex is a monomer containing one manganese and one lithium atom, whereas the sodium and potassium complexes are dimers and reveal an unprecedented coordination mode for the bridging 3-(2-pyridyl) pyrazolate ligand, where the nitrogen of the pyridyl fragment and the nitrogen-1 of pyrazolate are chelated to manganese atoms, and each nitrogen-2 of pyrazolate is coordinated to two alkaline atoms. The polymetallic carbonylate complexes are unstable in solution and evolve spontaneously to [fac-{Re(CO) 3(mu(2)-pypz)}](2) or to the trimetallic paramagnetic species [MnII(mu(2)-pypz) 2{fac-{MnI(CO) 3(mu(2)-pypz)}(2)}]. The related complex cis-[MnCl2(pypzH)(2)] was also synthesized and structurally characterized. The electrochemical behavior of the new homo-and heteropolymetallic 3-(2-pyridyl) pyrazolate complexes has been studied and details of their redox properties are reported.por
dc.identifier.citationARROYO, Marta; [et al] – Homo-And Heteropolymetallic 3-(2-Pyridyl)Pyrazolate Manganese and Rhenium complexes. Dalton Transactions. ISSN: 1477-9226. Vol. 43, nr. 10 (2104), pp. 4009-4020por
dc.identifier.doi10.1039/c3dt53439a
dc.identifier.issn1477-9226
dc.identifier.issn1477-9234
dc.identifier.urihttp://hdl.handle.net/10400.21/4943
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherRoyal Society of Chemistrypor
dc.subjectTricarbonylrhenium(I) bromide complexespor
dc.subjectCoordination compoundspor
dc.subjectCrystal structurepor
dc.subjectX-raypor
dc.subjectMolecular structurepor
dc.subjectElectrochemical parametrizationpor
dc.subjectSpectroscopic propertiespor
dc.subjectAsymmetric catalysispor
dc.subjectPyrazole complexespor
dc.subjectRu(II) complexespor
dc.titleHomo-and heteropolymetallic 3-(2-pyridyl)pyrazolate manganese and rhenium complexespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceCambspor
oaire.citation.endPage4020por
oaire.citation.issue10por
oaire.citation.startPage4009por
oaire.citation.titleDalton Transactionspor
oaire.citation.volume43por
person.familyNameArroyo
person.familyNameGarcia-Rodriguez
person.familyNameAlegria
person.familyNamePombeiro
person.givenNameMarta
person.givenNameRaul
person.givenNameElisabete
person.givenNameArmando
person.identifier863202
person.identifier.ciencia-id8C1F-851A-9F1C
person.identifier.ciencia-id8311-38FA-CEFB
person.identifier.orcid0000-0002-5862-3396
person.identifier.orcid0000-0003-0699-3894
person.identifier.orcid0000-0003-4060-1057
person.identifier.orcid0000-0001-8323-888X
person.identifier.ridJ-8305-2017
person.identifier.ridE-9945-2012
person.identifier.ridI-5945-2012
person.identifier.scopus-author-id8315848300
person.identifier.scopus-author-id7006067269
rcaap.rightsclosedAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication.latestForDiscoverya95c15ce-b7d7-4fe6-8f69-c6f79980d81e

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