M. Satpathy et B. Pradhan, SYNTHESIS AND CHARACTERIZATION OF COPPER(II) AND NICKEL(II) COMPLEXESWITH SCHIFF-BASES DERIVED FROM AROMATIC DIAMINES AND HETEROCYCLIC ALDEHYDES, Journal of the Indian Chemical Society, 75(9), 1998, pp. 518-519
Chelating ligands derived from thiophene-2-aldehyde and o-phenylenedia
mine (talophen) or tn-phenylenediamine (talmphen) have been synthesize
d. The complexes of Cu-II and Ni-II have been isolated. [Cu(talophen)(
2)]Cl-2, [Cu(talmphen)(2)]Cl-2, [Ni(talophen)(2)]Cl-2, [Ni(talmphen)(2
)]Cl-2 are diamagnetic and square planar, Other Cu-II and Ni-II comple
xes show mu(eff) indicative of their distorted octahedral or octahedra
l nature.