Spectral, thermal and magnetic properties of Cu(II) and Ni(II) complexes with Schiff base ligands | Zendy

Beata Cristóvão | Zendy

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Spectral, thermal and magnetic properties of Cu(II) and Ni(II) complexes with Schiff base ligands

Author(s) -

Beata Cristóvão

Publication year - 2011

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc101112140c

Subject(s) - diamagnetism , magnetic susceptibility , schiff base , nickel , copper , microcrystalline , chemistry , magnetic moment , crystallography , condensed matter physics , magnetic field , physics , organic chemistry , quantum mechanics

Mononuclear copper(II) and nickel(II) complexes of the formulae [Cu(L1)] (1), [Ni(L1)] (2), [Cu(L2)] (3) and [Cu(L3)H2O] (4) (where L1 = N,N’-ethylenebis(4,6-dimethoxysalicylidenaminato), L2 = N,N’-ethylenebis(5-bromosalicylidenaminato) and L3 = N,N’-ethylenebis(5-bromo-3-methoxysalicylidenaminato)) were synthesized as microcrystalline powders and characterized by IR spectroscopy, thermal analysis and magnetic measurements. The magnetic susceptibility of the Cu(II) complexes changed with temperature according to the Curie-Weiss law. The complexes 1, 3 and 4 exhibit magnetic moments of 2.29, 2.20 and 1.88 µB, respectively, at 303 K. These values practically do not change with lowering the temperature to 77 K. The nickel(II) complex 2 is diamagnetic

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