Dinuclear and Heptanuclear Nickel(II) Complexes: Anion Coordination Induced Ligand Arm Hydrolysis and Aggregation Around a Nickel(II) Core

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dc.contributor.author Ghosh, Aloke Kumar
dc.contributor.author Bauzá Riera, Antonio
dc.contributor.author Bertolasi, Valerio
dc.contributor.author Frontera Beccaria, Antonio
dc.contributor.author Ray, Debashis
dc.date.accessioned 2018-09-25T09:41:09Z
dc.identifier.uri http://hdl.handle.net/11201/147639
dc.description.abstract [eng] The heptanuclear and tetracationic nickel(II) complex [Ni7(l3-OH)6(l3-H2L)4](NO3)4 2MeOH (3 2MeOH); (H3L is 2,6-bis-[(3-hydroxy-propylimino)-methyl]-4-methyl-phenol), featuring four defective cubanes around a pivotal nickel(II) ion, has been obtained via hydroxido-bridge-induced assemblage of two Ni3 fragments. Presence of azido (N3 ) and bromido (Br ) ions in reactions on the contrary lead to one ligand imine arm hydrolysis and formations of [Ni2(N3)2(l-HL1)2(OH2)2] (1) and [Ni2Br2(l-HL1)2(OH2)2] (2); where H2L1 is 2-hydroxy-3-[(3-hydroxy-propylimino)-methyl]-5-methyl-benzaldehyde. X-ray structural analyses of 3 show six symmetrically positioned NiII around a central NiII and bridged by six in situ generated hydroxido groups from solvent water molecules. Density functional theory (DFT) calculations have also been performed to predict magnetic behavior of the complexes. The spin density surface of compounds 1 and 2 has been also obtained.
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dc.relation.isformatof Versió postprint del document publicat a: https://doi.org/10.1016/j.poly.2013.01.009
dc.relation.ispartof Polyhedron, 2013, vol. 53, p. 32-39
dc.subject.classification 54 - Química
dc.subject.other 54 - Chemistry. Crystallography. Mineralogy
dc.title Dinuclear and Heptanuclear Nickel(II) Complexes: Anion Coordination Induced Ligand Arm Hydrolysis and Aggregation Around a Nickel(II) Core
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/acceptedVersion
dc.date.updated 2018-09-25T09:41:09Z
dc.date.embargoEndDate info:eu-repo/date/embargoEnd/2075-01-01
dc.embargo 2075-01-01
dc.rights.accessRights info:eu-repo/semantics/embargoedAccess
dc.identifier.doi https://doi.org/10.1016/j.poly.2013.01.009


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