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Silver coordination polymers with tri- and hexacyanoethyl-functionalized macrocyclic ligands

2015Journal article Restricted access
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dc.contributor.authorMa, Zhen
dc.contributor.authorShi, Huaduan
dc.contributor.authorDeng, Xiuqiang
dc.contributor.authorSilva, Maria de Fátima C. Guedes da
dc.contributor.authorMartins, Luisa
dc.contributor.authorPombeiro, Armando
dc.date.accessioned2016-03-14T12:30:20Z
dc.date.available2016-03-14T12:30:20Z
dc.date.issued2015
dc.description.abstractTri-and hexa-cyanoethyl functionalized 17-(L-1) and 42-membered (L-2) macrocyclic compounds were obtained by [1 + 1] (for L-1) or [2 + 2] (for L-2) cyclocondensation of the corresponding dialdehyde and diethylenetriamine, followed by hydrogenation by KBH4 and subsequent cyano-functionalization with acrylonitrile. They react with silver nitrate, leading to the formation of [AgL1](NO3) (1) and of the metalorganic coordination polymers [Ag-2(NO3)(2)L-1](n) (2) and {[Ag2L2](NO3)(2)}(n) (3). The complexes were characterized by elemental analysis, H-1 NMR, C-13 NMR, IR spectroscopies, and ESI-MS; moreover, L-2, 1, 2 and 3 were also characterized by single crystal X-ray diffraction. The metal cation in 1 is pentacoordinated with a N3O2 coordination environment; in 2, the metal cations display N4O2 octahedral and N2O3 square-pyramid coordination and in 3 they are in square-planar N-4 sites. In 1, the ligand acts as a pentadentate chelator, and in the other two cases, the ligands behave as octadentate chelators in a 1 kappa N-3:kappa O-2,2 kappa N,3 kappa N,4 kappa N (in 2) or 1 kappa N-3,2 kappa N-3,3 kappa N,4 kappa N fashion (in 3). The cyanoethyl strands of the ligands are directly involved in the formation of the 2D frameworks of 2 and 3, which in the former polymer can be viewed as a net composed of hexametallic 36-membered macrocyclic rings and in the latter generates extra hexametallic 58-membered cyclic sets that form zig-zag layers. The thermal analytical and electrochemical properties of these silver complexes were also studied.pt_PT
dc.identifier.citationMA, Zhen; [et al.] - Silver coordination polymers with tri- and hexacyanoethyl-functionalized macrocyclic ligands. Dalton Transactions. ISSN.1477-9226. Vol 44, N.º 3 (2015), pp. 1388-1396pt_PT
dc.identifier.doi10.1039/c4dt02604gpt_PT
dc.identifier.issn1477-9226
dc.identifier.issn1477-9234
dc.identifier.urihttp://hdl.handle.net/10400.21/5845
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Soc Chemistrypt_PT
dc.relation.publisherversionhttp://pubs.rsc.org/en/Content/ArticleLanding/2015/DT/C4DT02604G#!divAbstractpt_PT
dc.subjectStructural-Characterizationpt_PT
dc.subjectSpectroscopic Propertiespt_PT
dc.subjectComplexespt_PT
dc.subjectDonorpt_PT
dc.subjectDerivativespt_PT
dc.subjectLuminescencept_PT
dc.subjectPyridinept_PT
dc.subjectCrystalpt_PT
dc.titleSilver coordination polymers with tri- and hexacyanoethyl-functionalized macrocyclic ligandspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1396pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage1388pt_PT
oaire.citation.volume44pt_PT
person.familyNameMartins
person.familyNamePombeiro
person.givenNameLuisa
person.givenNameArmando
person.identifier637885
person.identifier.ciencia-idE218-E297-A4EA
person.identifier.ciencia-id8311-38FA-CEFB
person.identifier.orcid0000-0002-5403-9352
person.identifier.orcid0000-0001-8323-888X
person.identifier.ridG-6210-2011
person.identifier.ridI-5945-2012
person.identifier.scopus-author-id8650947800
person.identifier.scopus-author-id7006067269
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8ed70b09-b4d3-4a5d-9f75-12b13a332204
relation.isAuthorOfPublication6d18ff2e-5c33-4010-b1e7-964c72349813
relation.isAuthorOfPublication.latestForDiscovery6d18ff2e-5c33-4010-b1e7-964c72349813

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