000127002 001__ 127002
000127002 005__ 20241125101149.0
000127002 0247_ $$2doi$$a10.1021/acs.inorgchem.3c00650
000127002 0248_ $$2sideral$$a134423
000127002 037__ $$aART-2023-134423
000127002 041__ $$aeng
000127002 100__ $$aLorenzo-Aparicio, C.
000127002 245__ $$aSynthesis, structure, and photophysical properties of platinum(II) (N, C, N) pincer complexes derived from purine nucleobases
000127002 260__ $$c2023
000127002 5060_ $$aAccess copy available to the general public$$fUnrestricted
000127002 5203_ $$aThe synthesis of a series of Pt{κ3-N,C,N′-[L]}X (X = Cl, RC≡C) pincer complexes derived from purine and purine nucleosides is reported. In these complexes, the 6-phenylpurine skeleton provides the N,C-cyclometalated fragment, whereas an amine, imine, or pyridine substituent of the phenyl ring supplies the additional N′-coordination point to the pincer complex. The purine N,C-fragment has two coordination positions with the metal (N1 and N7), but the formation of the platinum complexes is totally regioselective. Coordination through the N7 position leads to the thermodynamically favored [6.5]-Pt{κ3-N7,C,N′-[L]}X complexes. However, the coordination through the N1 position is preferred by the amino derivatives, leading to the isomeric kinetic [5.5]-Pt{κ3-N1,C,N′-[L]}X complexes. Extension of the reported methodology to complexes having both pincer and acetylide ligands derived from nucleosides allows the preparation of novel heteroleptic bis-nucleoside compounds that could be regarded as organometallic models of Pt-induced interstrand cross-link. Complexes having amine or pyridine arms are green phosphorescence emitters upon photoexcitation at low concentrations in CH2Cl2 solution and in poly(methyl methacrylate) (PMMA) films. They undergo self-quenching at high concentrations due to molecular aggregation. The presence of intermolecular π–π stacking and weak Pt···Pt interactions was also observed in the solid state by X-ray diffraction analysis.
000127002 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2019-104652GB-I00$$9info:eu-repo/grantAgreement/ES/DGA/E06-23R$$9fo:eu-repo/grantAgreement/ES/DGA-FSE/LMP23-21$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-108429RB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2020-115286GB-I00/AEI/10.13039/501100011033$$9info:eu-repo/grantAgreement/ES/MICINN/RED2018-102387-T
000127002 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000127002 590__ $$a4.3$$b2023
000127002 592__ $$a0.928$$b2023
000127002 591__ $$aCHEMISTRY, INORGANIC & NUCLEAR$$b8 / 44 = 0.182$$c2023$$dQ1$$eT1
000127002 593__ $$aChemistry (miscellaneous)$$c2023$$dQ1
000127002 593__ $$aPhysical and Theoretical Chemistry$$c2023$$dQ1
000127002 593__ $$aInorganic Chemistry$$c2023$$dQ1
000127002 594__ $$a7.6$$b2023
000127002 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000127002 700__ $$aMoreno-Blázquez, S.$$uUniversidad de Zaragoza
000127002 700__ $$0(orcid)0000-0003-0381-0917$$aOliván, M.
000127002 700__ $$0(orcid)0000-0002-4829-7590$$aEsteruelas, M. A.
000127002 700__ $$aGómez Gallego, M.
000127002 700__ $$aGarcía-Álvarez, P.
000127002 700__ $$aCabeza, J. A.
000127002 700__ $$aSierra, M. A.
000127002 7102_ $$12010$$2760$$aUniversidad de Zaragoza$$bDpto. Química Inorgánica$$cÁrea Química Inorgánica
000127002 773__ $$g62, 21 (2023), 8232-8248$$pInorg. chem.$$tInorganic Chemistry$$x0020-1669
000127002 8564_ $$s4878644$$uhttps://zaguan.unizar.es/record/127002/files/texto_completo.pdf$$yVersión publicada
000127002 8564_ $$s3085274$$uhttps://zaguan.unizar.es/record/127002/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000127002 909CO $$ooai:zaguan.unizar.es:127002$$particulos$$pdriver
000127002 951__ $$a2024-11-22-12:05:51
000127002 980__ $$aARTICLE