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http://hdl.handle.net/10261/19763
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dc.contributor.author | Falvello, Larry R. | - |
dc.contributor.author | Forniés, Juan | - |
dc.contributor.author | Garde, Raquel | - |
dc.contributor.author | García, Ana | - |
dc.contributor.author | Lalinde, Elena | - |
dc.contributor.author | Moreno, M. Teresa | - |
dc.contributor.author | Steiner, Alexander | - |
dc.contributor.author | Tomás, Milagros | - |
dc.contributor.author | Usón, Isabel | - |
dc.date.accessioned | 2009-12-21T13:40:12Z | - |
dc.date.available | 2009-12-21T13:40:12Z | - |
dc.date.issued | 2006-02 | - |
dc.identifier.citation | Inorganic Chemistry 45(6): 2543-2552 (2006) | en_US |
dc.identifier.issn | 0020-1669 | - |
dc.identifier.uri | http://hdl.handle.net/10261/19763 | - |
dc.description | 10 pages, 6 figures, 2 tables, 1 scheme.-- Supporting Information Available: http://pubs.acs.org. | en_US |
dc.description.abstract | Treatment of (NBu4)2[PtR4] (R = C6F5) with 1 or 0.5 equiv of TlNO3 in EtOH/H2O produces colorless crystals of trinuclear complex (NBu4)3[Tl{PtR4}2], 1, in which the Tl+ center is complexed by two [PtR4]2- fragments (Pt−Tl = 2.9777(4) and 3.0434(4) Å). The expected mixed complex with a Pt/Tl composition of 1:1, 2, is generated as an orange microcrystalline solid by treating [PtR4]2- with a large excess of TlNO3 (8 equiv). Crystallographic analysis of 2 reveals the formation of a novel one-dimensional (1D) heterometallic linear chain (NBu4)∞[Tl{PtR4}]∞, 2, formed by alternating a [PtR4]2- fragment and a Tl+ center with a uniform Pt−Tl bond separation along the chain of 3.0321(2) Å. Surprisingly, treatment of (NBu4)2[PtR4] with 1 equiv of TlPF6 in EtOH yields pale greenish-yellow needles of an unusual adduct, 2·{(NBu4)(PF6)}∞ (3), which was found to form a similar extended linear chain, {TlPtR4}∞, constructed by two alternating Pt−Tl separations, a shorter (3.1028(6) Å) one and a longer (3.2306(6) Å) one. The solid state and solution photophysical properties have been examined. While complex 1 shows a high-energy MM‘CT blue phosphorescence (450 nm), the extended chain in 2 exhibits a lower-energy emission (582 nm) than that in adduct 3 (505 nm). For products 2 and 3, interesting luminescence thermochromism is observed in frozen solutions. The emissions are found to be strongly dependent on the solvent, concentration, and excitation wavelength. | en_US |
dc.description.sponsorship | We thank the Dirección General de Investigación of Spain (Projects BQU2002-03997-C02-01, 02, CTQ2005-08606-C02-01, and CTQ2005-03141 and a grant for A.G.). | en_US |
dc.format.extent | 259768 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | American Chemical Society | en_US |
dc.rights | closedAccess | en_US |
dc.title | Tri-[Pt2Tl]3- and polynuclear chain [Pt−Tl]∞- Complexes based on nonbridged PtII−TlI bonds: Solid state and frozen solution photophysical properties | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1021/ic051818u | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/10.1021/ic051818u | en_US |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | No Fulltext | - |
item.languageiso639-1 | en | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
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