Novel CuII–MII–CuII (M = Cu or Ni) trinuclear and [NaI 2CuII 6] hexanuclear complexes assembled by bi-compartmental ligands: syntheses, structures, magnetic and catalytic studies - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Dalton Transactions Année : 2015

Novel CuII–MII–CuII (M = Cu or Ni) trinuclear and [NaI 2CuII 6] hexanuclear complexes assembled by bi-compartmental ligands: syntheses, structures, magnetic and catalytic studies

Résumé

In the present work, two compartmental ligands H2L1 and H2L2 were in situ generated during the syntheses of new trinuclear complexes, [Cu2Ni(L1)(2,2’-bpy)2(NO3)2][ClO4]2 (5), [Cu3(L2)(NO3)2][ClO4]2 (6), and [Cu3(L2)(NCS)2(NO3)]+ that co-crystallize in 7 with a [Cu6(L2)2Na2(NO3)6(NCS)4] unit to give the final molecular formula [Cu6(L2)2Na2(NO3)6(NCS)4][Cu3(L2)(NCS)2(NO3)]2(NO3)2·5H2O (7). The magnetic property studies of 5–7 revealed weak CuII–CuII ferromagnetic interactions in compound 6 (JCu–Cu/kB = +1.4(1) K) and 7 (JCu–Cu/kB = +1.6) while in intranuclear CuII–NiII–CuII compound 5, the magnetic coupling between two CuII ions is switched off by the diamagnetic square planar NiII bridge......
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Dates et versions

hal-01152677 , version 1 (18-05-2015)

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Surajit Biswas, Arpan Dutta, Malay Dolai, Indrani Bhowmick, Mathieu Rouzières, et al.. Novel CuII–MII–CuII (M = Cu or Ni) trinuclear and [NaI 2CuII 6] hexanuclear complexes assembled by bi-compartmental ligands: syntheses, structures, magnetic and catalytic studies. Dalton Transactions, 2015, 44, pp. 9426-9438. ⟨10.1039/c4dt03728f⟩. ⟨hal-01152677⟩

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