000076099 001__ 76099
000076099 005__ 20191126134635.0
000076099 0247_ $$2doi$$a10.1016/j.solidstatesciences.2018.01.004
000076099 0248_ $$2sideral$$a104567
000076099 037__ $$aART-2018-104567
000076099 041__ $$aeng
000076099 100__ $$aCernák, J.
000076099 245__ $$aSyntheses, crystal structures and magnetic properties of complexes based on [Ni(L-L)3]2+ complex cations with dimethylderivatives of 2, 2'-bipyridine and TCNQ
000076099 260__ $$c2018
000076099 5060_ $$aAccess copy available to the general public$$fUnrestricted
000076099 5203_ $$aFrom the aqueous-methanolic systems Ni(NO3)2 – LiTCNQ – 5, 5'-dmbpy and Ni(NO3)2 – LiTCNQ – 4, 4'-dmbpy three novel complexes [Ni(5, 5'-dmbpy)3](TCNQ)2 (1), [Ni(4, 4'-dmbpy)3](TCNQ)2 (2) and [Ni(4, 4'-dmbpy)3]2(TCNQ-TCNQ)(TCNQ)2·0.60H2O (3), were isolated in single crystal form. The new compounds were identified using chemical analyses and IR spectroscopy. Single crystal studies of all samples corroborated their compositions and have shown that their ionic structures contain the complex cations [Ni(5, 5'-dmbpy)]2+ (1) or [Ni(4, 4'-dmbpy)]2+ (2 and 3). The anionic parts of the respective crystal structures 1–3 are formed by TCNQ·- anion-radicals and in 3 also by a s-dimerized dianion (TCNQ-TCNQ)2- with a C-C distance of 1.663(5) Å. The supramolecular structures are governed by weak hydrogen bonding interactions. The variable-temperature (2–300 K) magnetic studies of 1 and 3 confirmed the presence of magnetically active Ni(II) atoms with S = 1 and TCNQ·- anion-radicals with S = 1/2 while the (TCNQ-TCNQ)2- dianion is magnetically silent. The magnetic behavior was described by a complex magnetic model assuming strong antiferromagnetic interactions between some TCNQ·- anion-radicals.
000076099 536__ $$9info:eu-repo/grantAgreement/EUR/ERDF/ITMS26220120047$$9info:eu-repo/grantAgreement/EUR/ERDF/ITMS26220220186$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68200-C2-1-P
000076099 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000076099 590__ $$a2.155$$b2018
000076099 591__ $$aCHEMISTRY, INORGANIC & NUCLEAR$$b21 / 45 = 0.467$$c2018$$dQ2$$eT2
000076099 591__ $$aPHYSICS, CONDENSED MATTER$$b36 / 68 = 0.529$$c2018$$dQ3$$eT2
000076099 591__ $$aCHEMISTRY, PHYSICAL$$b89 / 148 = 0.601$$c2018$$dQ3$$eT2
000076099 592__ $$a0.508$$b2018
000076099 593__ $$aChemistry (miscellaneous)$$c2018$$dQ2
000076099 593__ $$aMaterials Science (miscellaneous)$$c2018$$dQ2
000076099 593__ $$aCondensed Matter Physics$$c2018$$dQ2
000076099 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000076099 700__ $$aHegedüs, M.
000076099 700__ $$aVáhovská, L.
000076099 700__ $$aKuchár, J.
000076099 700__ $$aŠoltésová, D.
000076099 700__ $$aCižmár, E.
000076099 700__ $$aFeher, A.
000076099 700__ $$0(orcid)0000-0002-0444-996X$$aFalvello, L.R.$$uUniversidad de Zaragoza
000076099 7102_ $$12010$$2760$$aUniversidad de Zaragoza$$bDpto. Química Inorgánica$$cÁrea Química Inorgánica
000076099 773__ $$g77 (2018), 27-36$$pSolid state sci.$$tSOLID STATE SCIENCES$$x1293-2558
000076099 8564_ $$s1821584$$uhttps://zaguan.unizar.es/record/76099/files/texto_completo.pdf$$yPostprint
000076099 8564_ $$s82946$$uhttps://zaguan.unizar.es/record/76099/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
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000076099 951__ $$a2019-11-26-13:43:39
000076099 980__ $$aARTICLE