000112383 001__ 112383
000112383 005__ 20230519145420.0
000112383 0247_ $$2doi$$a10.1002/hlca.202100044
000112383 0248_ $$2sideral$$a125303
000112383 037__ $$aART-2021-125303
000112383 041__ $$aeng
000112383 100__ $$aWilkinson, Eden-Taylor
000112383 245__ $$aStrained Ruthenium Complexes Bearing Tridentate Guanidine-Derived Ligands
000112383 260__ $$c2021
000112383 5060_ $$aAccess copy available to the general public$$fUnrestricted
000112383 5203_ $$aThe dimer [{(η6-p-cymene)RuCl}2(μ-Cl)2] (cymene=MeC6H4iPr) reacts with N,N′-bis(p-tolyl)-N′′-(2-pyridinylmethyl)guanidine (H2L1) and N,N′-bis(p-tolyl)-N′′-(2-diphenylphosphanoethyl)guanidine (H2L2), in the presence of NaSbF6, giving rise to chlorido compounds of formula [(η6-p-cymene)RuCl(H2L)][SbF6] (H2L=H2L1 (1), H2L2 (2)) in which the guanidine ligand adopts a κ2 chelate coordination mode. The related ligand (S)-N,N′-bis(p-tolyl)-N′′-(1-isopropyl, 2-diphenylphosphano ethyl)guanidine (H2L3) affords mixtures of the corresponding chlorido compound [(η6-p-cymene)RuCl(H2L3)][SbF6] (3) together with the complexes [(η6-p-cymene)RuCl2(H3L3)][SbF6] (4) and [(η6-p-cymene)Ru(κ3N,N′,P-HL3)][SbF6] (10) which contain phosphano-guanidinium and phosphano-guanidinate ions acting as monodentate and tridentate ligand, respectively. Compounds 1, 2 and mixture of 3/4/10 react with AgSbF6 rendering the cationic aqua-complexes [(η6-p-cymene)Ru(H2L)(OH2)][SbF6]2 (H2L=H2L1 (5), H2L2 (6), H2L3 (7)). These aqua-complexes exhibit a temperature-dependent fluxional process in solution. Experimental NMR studies and DFT theoretical calculations on complex 6 suggest that the process involves the exchange between two rotamers around one of the C−N guanidine bonds. Treatment of 5–7 with NaHCO3 renders the complexes [(η6-p-cymene)Ru(κ3N,N′,N′′-HL1)][SbF6] (8) and [(η6-p-cymene)Ru(κ3N,N′,P-HL)][SbF6] (HL=HL2 (9), HL3 (10)), respectively, in which the HL ligand adopts a fac κ3 coordination mode. The new complexes have been characterized by analytical and spectroscopic means, including the determination of the crystal structures of the compounds 1, 2, 5, 9 and 10, by X-ray diffractometric methods.
000112383 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/CTQ2017-83421-P$$9info:eu-repo/grantAgreement/ES/MICINN/CTQ2018-095561-BI00$$9info:eu-repo/grantAgreement/ES/MINECO/RYC-2013-13800
000112383 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000112383 590__ $$a2.201$$b2021
000112383 592__ $$a0.595$$b2021
000112383 594__ $$a3.4$$b2021
000112383 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b122 / 180 = 0.678$$c2021$$dQ3$$eT3
000112383 593__ $$aBiochemistry$$c2021$$dQ2
000112383 593__ $$aCatalysis$$c2021$$dQ2
000112383 593__ $$aPhysical and Theoretical Chemistry$$c2021$$dQ2
000112383 593__ $$aInorganic Chemistry$$c2021$$dQ2
000112383 593__ $$aDrug Discovery$$c2021$$dQ2
000112383 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000112383 700__ $$0(orcid)0000-0002-6160-3046$$aViguri, Fernando$$uUniversidad de Zaragoza
000112383 700__ $$0(orcid)0000-0002-8845-0174$$aRodríguez, Ricardo$$uUniversidad de Zaragoza
000112383 700__ $$0(orcid)0000-0003-4500-1974$$aLópez, José A.$$uUniversidad de Zaragoza
000112383 700__ $$0(orcid)0000-0002-7063-1292$$aGarcía-Orduña, Pilar
000112383 700__ $$0(orcid)0000-0001-8054-2237$$aLahoz, Fernando J.
000112383 700__ $$0(orcid)0000-0001-9071-563X$$aLamata, Pilar$$uUniversidad de Zaragoza
000112383 700__ $$0(orcid)0000-0003-4196-5856$$aCarmona, Daniel
000112383 7102_ $$12010$$2760$$aUniversidad de Zaragoza$$bDpto. Química Inorgánica$$cÁrea Química Inorgánica
000112383 773__ $$g104, 6 (2021), e2100044 [17 pp.]$$pHelv. chim. acta$$tHELVETICA CHIMICA ACTA$$x0018-019X
000112383 8564_ $$s1554999$$uhttps://zaguan.unizar.es/record/112383/files/texto_completo.pdf$$yPostprint
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000112383 951__ $$a2023-05-18-14:06:46
000112383 980__ $$aARTICLE