000060650 001__ 60650
000060650 005__ 20171221090011.0
000060650 0247_ $$2doi$$a10.3390/inorganics2030508
000060650 0248_ $$2sideral$$a98059
000060650 037__ $$aART-2014-98059
000060650 041__ $$aeng
000060650 100__ $$0(orcid)0000-0002-0257-0483$$aSicilia, Violeta$$uUniversidad de Zaragoza
000060650 245__ $$aHalf-Lantern Pt(II) and Pt(III) Complexes. New Cyclometalated Platinum Derivatives
000060650 260__ $$c2014
000060650 5060_ $$aAccess copy available to the general public$$fUnrestricted
000060650 5203_ $$aThe divalent complex {Pt(bzq)(µ-L)}2] (1) Hbzq = benzoh]quinolone, HL = CF3C4H2N2SH: 4-(trifluoromethyl)pyrimidine-2-thiol] was obtained from equimolar amounts of Pt(bzq)(NCMe)2]ClO4 and 4-(trifluoromethyl)pyrimidine-2-thiol with an excess of NEt3. The presence of a low intensity absorption band at 486 nm (CH2Cl2), assignable to a metal-metal-to-ligand charge transfer transition (1MMLCT) ds*(Pt)2¿p*(bzq)], is indicative of the existence of two platinum centers located in close proximity because the rigidity of the half-lantern structure allows the preservation of these interactions in solution. Compound 1 undergoes two-electron oxidation upon treatment with halogens X2 (X2: Cl2, Br2 or I2) to give the corresponding dihalodiplatinum (III) complexes {Pt(bzq)(µ-L)X}2] (L = CF3C4H2N2S-¿N, S; X: Cl 2, Br 3, I 4). Complexes 2–4 were also obtained by reaction of 1 with HX (molar ratio 1:2, 10% excess of HX) in THF with yields of about 80% and compound 2 was also obtained by reaction of {Pt(bzq)(µ-Cl)}2] with HL (4-(trifluoromethyl)pyrimidine-2-thiol) in molar ratio 1:2 in THF, although in small yield. The X-ray structures of 2 and 3 confirmed the half-lantern structure and the anti configuration of the molecules. Both of them show Pt–Pt distances (2.61188(15) Å 2, 2.61767(16) Å 3) in the low range of those observed in Pt2(III, III)X2 half-lantern complexes.
000060650 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E21$$9info:eu-repo/grantAgreement/ES/MICINN/CTQ2008-06669-C02$$9info:eu-repo/grantAgreement/ES/MINECO/CTQ2012-35251
000060650 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000060650 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000060650 700__ $$0(orcid)0000-0001-9003-1051$$aBorja, Pilar$$uUniversidad de Zaragoza
000060650 700__ $$0(orcid)0000-0002-4808-574X$$aMartín, Antonio$$uUniversidad de Zaragoza
000060650 7102_ $$12010$$2760$$aUniversidad de Zaragoza$$bDepartamento de Química Inorgánica$$cQuímica Inorgánica
000060650 773__ $$g2, 3 (2014), 508-523$$tInorganics$$x2304-6740
000060650 8564_ $$s1122812$$uhttp://zaguan.unizar.es/record/60650/files/texto_completo.pdf$$yVersión publicada
000060650 8564_ $$s94654$$uhttp://zaguan.unizar.es/record/60650/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000060650 909CO $$ooai:zaguan.unizar.es:60650$$particulos$$pdriver
000060650 951__ $$a2017-12-21-08:59:47
000060650 980__ $$aARTICLE