Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/4579
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dc.contributor.authorDemartin, F.en_us
dc.contributor.authorFabrizi De Biani, Fabriziaen_us
dc.contributor.authorFemoni, C.en_us
dc.contributor.authorIapalucci, M. C.en_us
dc.contributor.authorLongoni, G.en_us
dc.contributor.authorMacchi, P.en_us
dc.contributor.authorZanello, Pieroen_us
dc.date.accessioned2021-03-30T15:43:11Z-
dc.date.available2021-03-30T15:43:11Z-
dc.date.issued2001-
dc.identifier.issn1040-7278en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12779/4579-
dc.description40307en_US
dc.description.abstractThe [Ni36Pt4(CO)45]6- and [Ni37Pt4(CO)46]6- clusters have been obtained in mixture upon reaction in acetonitrile of [Ni6(CO)12]2- salts with K2PtCl4 in a 2.5:1 molar ratio. The two hexaanions were indistinguishable by spectroscopic techniques. Crystallization of their trimethylbenzylammonium salts led to crystals of composition 0.5[NMe3CH2Ph]6[Ni36Pt4(CO)45]-0.5[NMe3CH2Ph]6[Ni37Pt4(CO)46]·C3H8O, hexagonal,space group P63 (No. 173), a=17.853(9), c=27.127(13) Å, Z=2; final R=0.057. The metal core of the [Ni36Pt4(CO)45]6- anion consists of a Pt4 tetrahedron fully encapsulated in a shell of 36 Ni atoms belonging to a very distorted and incomplete ngr5 tetrahedron. The [Ni37Pt4(CO)46]6- hexaanion derives from the former by capping the unique triangular face of the metal polyhedron with an additional Ni(CO) fragment. The [Ni36Pt4(CO)45]6--[Ni37Pt4(CO)46]6- mixture is rapidly degraded to the known [Ni9Pt3(CO)21]4- cluster by exposure to carbon monoxide. Its reaction with protic acids initially affords the corresponding [H6-nNi36Pt4(CO)45]n--[H6-nNi37Pt4(CO)46]n- (n=5, 4) derivatives, and eventually leads to rearrangement to the known [H6-n Ni38Pt6(CO)48]n- species. Both [Ni36Pt4(CO)45]6--[Ni37Pt4(CO)46]6- and [HNi36Pt4(CO)45]5--[HNi37Pt4(CO)46]5- mixtures have been chemically and electrochemically reduced to their corresponding [Ni36Pt4(CO)45]n--[Ni37Pt4(CO)46]n- (n=7–9) and [HNi36Pt4(CO)45]n--[HNi37Pt4(CO)46]n- (n=6–8) mixtures.en_US
dc.language.isoenen_US
dc.relationNoneen_US
dc.relation.ispartofJOURNAL OF CLUSTER SCIENCEen_US
dc.titleSynthesis, electrochemistry and crystal structure of the [Ni36Pt4(CO)(45)](6-) and [Ni37Pt4(CO)(46)](6-) hexaanionsen_US
dc.typeArticleen_US
dc.identifier.doi10.1023/A:1016614810894en_US
dc.identifier.scopus2-s2.0-0041833711en_US
dc.identifier.isiWOS:000169438800006en_US
dc.relation.volume12en_US
dc.description.firstpage61en_US
dc.description.lastpage74en_US
dc.description.thirdmissionNot applicableen_US
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeArticle-
item.fulltextNo Fulltext-
crisitem.author.orcid0000-0002-1698-5858-
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