Mixed pseudohalide complexes of copper(II). Crystal and molecular structure of [Cu(N-3)(NCS)(tmen)](n) and of [Cu(N-3)(NCO)(tmen)]2 (tmen = N,N,N ',N '-tetramethylethylenediamine)

dc.contributor.authorMauro, A. E.
dc.contributor.authorHaddad, P. S.
dc.contributor.authorZorel, H. E.
dc.contributor.authorSantos, RHA
dc.contributor.authorAnanias, SR
dc.contributor.authorMartins, F. R.
dc.contributor.authorTarrasqui, LHR
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T15:24:23Z
dc.date.available2014-05-20T15:24:23Z
dc.date.issued2004-11-01
dc.description.abstractThe compounds [Cu(N-3)(NSC)(tmen)](n) (1), [Cu(N-3)(NCO)(tmen)](n) (2) and [Cu(N-3)(NCO)(tmen)](2) (3) (tmen = N,N,N',N'-tetramethylethylenediamine) were synthesized and studied by i.r. spectroscopy. Single crystals of compounds (1) and (3) were obtained and characterized by X-ray diffraction. The structure of compound (1) consists of neutral chains of copper(II) ions bridged by a single azido ligand showing the asymmetric end-to-end coordination fashion. Each copper ion is also surrounded by the other three nitrogen atoms: two from one N,N,N',N'-tetramethylethylenediamine and one from a terminal bonded thiocyanate group. Compound (2) decomposes slowly in acetone and the product formed [Cu(N-3)(NCO)(tmen)](2) (3) crystallizes in the monoclinic system (P2(1)). The structure of (3) consists of dimeric units in which the Cu atoms are penta-coordinated and connected by p(1,3) bridging azido and cyanate ligands. In both cases the five coordinated atoms give rise to a slightly distorted square-based pyramid coordination geometry at each copper ion. The thermal behavior of [Cu(N-3)(NSC)(tmen)](n) (1) and [Cu(N-3)(NCO)(tmen)](n) (2) were investigated and the final decomposition products were identified by X-ray powder diagrams.en
dc.description.affiliationUNESP, Inst Quim Araraquara, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUSP, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim Araraquara, BR-14801970 Araraquara, SP, Brazil
dc.format.extent893-899
dc.identifierhttp://dx.doi.org/10.1007/s11243-004-2242-9
dc.identifier.citationTransition Metal Chemistry. Dordrecht: Kluwer Academic Publ, v. 29, n. 8, p. 893-899, 2004.
dc.identifier.doi10.1007/s11243-004-2242-9
dc.identifier.issn0340-4285
dc.identifier.urihttp://hdl.handle.net/11449/35000
dc.identifier.wosWOS:000226417200012
dc.language.isoeng
dc.publisherKluwer Academic Publ
dc.relation.ispartofTransition Metal Chemistry
dc.relation.ispartofjcr1.261
dc.relation.ispartofsjr0,306
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleMixed pseudohalide complexes of copper(II). Crystal and molecular structure of [Cu(N-3)(NCS)(tmen)](n) and of [Cu(N-3)(NCO)(tmen)]2 (tmen = N,N,N ',N '-tetramethylethylenediamine)en
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights
dcterms.rightsHolderKluwer Academic Publ
unesp.author.lattes3300223970814448[1]
unesp.author.orcid0000-0002-9899-8440[3]

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