000133451 001__ 133451
000133451 005__ 20260217205501.0
000133451 0247_ $$2doi$$a10.1021/acs.inorgchem.3c04314
000133451 0248_ $$2sideral$$a138145
000133451 037__ $$aART-2024-138145
000133451 041__ $$aeng
000133451 100__ $$aMelendo, Irene
000133451 245__ $$aNIR-II Emission from Cyclometalated Dinuclear Pt(III) Complexes
000133451 260__ $$c2024
000133451 5060_ $$aAccess copy available to the general public$$fUnrestricted
000133451 5203_ $$aHalf-lantern Pt(II) dinuclear complexes [{Pt(C∧Npz)(μ-S∧NR)}2] (HC∧Npz = 1-naphthalen-2-yl-1H-pyrazole; R = H, HS∧N: 2-mercaptopyrimidine 1; R = CF3, HS∧NF: 4-(trifluoromethyl)-2-mercaptopyrimidine 2) were selectively obtained as single isomers with the C∧N groups in an anti-arrangement and rather short metallophilic interactions (dPt–Pt = 2.8684(2) Å for 2). They reacted with haloforms in the air and sunlight to obtain the corresponding oxidized diplatinum(III) derivatives [{Pt(C∧Npz)(μ-S∧NR)X}2] (X = Cl (1-Cl), Br (1-Br), I (1-I, 2-I)). The single-crystal X-ray structures exhibit Pt–Pt distances typical for the existence of a metal–metal bond, which evidence fairly well the influence of the axial ligand (X). The reactions of 1 and 2 with CHI3 in the dark afforded mixtures of [IPt(C∧Npz)(μ-S∧N)2Pt(C∧Npz)CHI2] and 1-I or 2-I, with the former being the major species under an Ar atmosphere, while the reactions of 1 with CHBr3 and CHCl3 need light to occur. These Pt2(III,III) complexes display low-energy absorptions and emissions that strongly depend on the axial ligand. In the solid state, they show a broad NIR emission ranging from 985 to 1070 nm at RT that suffers a hypsochromic shift when cooling down to 77 K. The photoemissive behavior of the dinuclear Pt(II) and Pt(III) systems is disclosed with the aid of density functional theory calculations.
000133451 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E17-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-122869NB-I00
000133451 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000133451 590__ $$a4.7$$b2024
000133451 592__ $$a0.958$$b2024
000133451 591__ $$aCHEMISTRY, INORGANIC & NUCLEAR$$b6 / 43 = 0.14$$c2024$$dQ1$$eT1
000133451 593__ $$aChemistry (miscellaneous)$$c2024$$dQ1
000133451 593__ $$aPhysical and Theoretical Chemistry$$c2024$$dQ1
000133451 593__ $$aInorganic Chemistry$$c2024$$dQ1
000133451 594__ $$a7.4$$b2024
000133451 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000133451 700__ $$0(orcid)0000-0003-1812-3175$$aFuertes, Sara
000133451 700__ $$0(orcid)0000-0002-4808-574X$$aMartín, Antonio
000133451 700__ $$0(orcid)0000-0002-0257-0483$$aSicilia, Violeta$$uUniversidad de Zaragoza
000133451 7102_ $$12010$$2760$$aUniversidad de Zaragoza$$bDpto. Química Inorgánica$$cÁrea Química Inorgánica
000133451 773__ $$g63, 12 (2024), 5470-5480$$pInorg. chem.$$tInorganic Chemistry$$x0020-1669
000133451 8564_ $$s3886554$$uhttps://zaguan.unizar.es/record/133451/files/texto_completo.pdf$$yVersión publicada
000133451 8564_ $$s3156223$$uhttps://zaguan.unizar.es/record/133451/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000133451 909CO $$ooai:zaguan.unizar.es:133451$$particulos$$pdriver
000133451 951__ $$a2026-02-17-20:21:55
000133451 980__ $$aARTICLE