title: Structural diversity in Ni(II) cluster chemistry: Ni5, Ni6, and {NiNa2}n complexes bearing the Schiff-base ligand N-naphthalidene-2-amino-5-chlorobenzoic acid.
abstract: The employment of the fluorescent bridging and chelating ligand N-naphthalidene-2-amino-5-chlorobenzoic acid (nacbH2) in Ni(II) cluster chemistry has led to a series of pentanuclear and hexanuclear compounds with different structural motifs, magnetic and optical properties, as well as an interesting 1-D coordination polymer. Synthetic parameters such as the inorganic anion present in the NiX2 starting materials (X = ClO4(-) or Cl(-)), the reaction solvent and the nature of the organic base employed for the deprotonation of nacbH2 were proved to be structure-directing components. Undoubtedly, the reported results demonstrate the rich coordination chemistry of nacbH2 in the presence of Ni(II) metal ions and the ability of this chelate to adopt a variety of different modes, thus fostering the formation of high-nuclearity molecules with many physical properties.
authors.affiliation: Department of Chemistry, Brock University, St. Catharines, Ontario L2S 3A1, Canada. tstamatatos@brocku.ca.
authors.forename: Panagiota S
authors.initials: PS
authors.lastname: Perlepe
authors.affiliation: REQUIMTE/LAQV & Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal.
authors.forename: Luís
authors.initials: L
authors.lastname: Cunha-Silva
authors.affiliation: Department of Aquaculture and Fisheries Management, Technological Educational Institute of Western Greece, 30 200 Messolonghi, Greece.
authors.forename: Vlasoula
authors.initials: V
authors.lastname: Bekiari
authors.affiliation: Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA.
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Gagnon
authors.affiliation: Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA.
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Teat
authors.affiliation: Departament de Quimica Inorganica and Institut de Nanociencia i Nanotecnologia (IN2UB), Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain.
authors.forename: Albert
authors.initials: A
authors.lastname: Escuer
authors.affiliation: Department of Chemistry, Brock University, St. Catharines, Ontario L2S 3A1, Canada. tstamatatos@brocku.ca.
authors.forename: Theocharis C
authors.initials: TC
authors.lastname: Stamatatos