title: A magnetostructural study of linear NiII MnIII NiII, NiII CrIII NiII and triangular Ni(II)3 species containing (pyridine-2-aldoximato)nickel(II) unit as a building block.
abstract: Three trinuclear complexes, NiII MnIII NiII, NiII CrIII NiII and Ni(II)3 based on (pyridine-2-aldoximato)nickel(II) units are described. Two of them, and , contain metal-centers in linear arrangement, as is revealed by X-ray diffraction. Complex is a homonuclear complex in which the three nickel(II) centers are disposed in a triangular fashion. The compounds were characterized by various physical methods including cyclic voltammetric and variable-temperature (2-290 K) susceptibility measurements. Complexes and display antiferromagnetic exchange coupling of the neighbouring metal centers, while weak ferromagnetic spin exchange between the adjacent Ni II and Cr III ions in is observed. The experimental magnetic data were simulated by using appropriate models.
authors: Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470, Mülheim an der Ruhr, Germany.
authors: Thomas
authors: T
authors: Weyhermüller
authors: Rita
authors: R
authors: Wagner
authors: Sumit
authors: S
authors: Khanra
authors: Phalguni
authors: P
authors: Chaudhuri
mesh_terms: D002857:Chromium / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008280:Magnetics; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010091:Oximes / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D013237:Stereoisomerism; D013696:Temperature
chemical_list: D009942:Organometallic Compounds; D010091:Oximes; D011725:Pyridines; D002857:Chromium; D008345:Manganese; D009532:Nickel