Springer Online Journal Archives 1860-2000
Chemistry and Pharmacology
Summary Complexes of general formula MLmCl2 · nH2O, where M=cobalt(II) or nickel(II); L=2-(4′-methyl, 2′-pyridyl)-benzimidazole (mpbi), 2-(4′-methyl, 2′-pyridyl)benzothiazole (mpbt), 2-(4′-methyl, 2′-pyridyl)benzoxazole (mpbo), 2-(4′-methyl, 2′-quinolyl)benzoxazole (mqbo), or 2-(4′-methyl, 8′-quinolyl)benzoxazole (mq′bo); m=1,2; n=0–3, were prepared and characterized by t.g.a., conductance and magnetic measurements, i.r. and diffuse-reflectance electronic spectra. All the ligands behave as bidentate and coordinate through the pyridine- and isoxazole-nitrogen atoms. The nickel complexes have distorted octahedral or fivecoordinate structures. The cobalt complexes arepseudo-tet- rahedral except Co(mpbo)2Cl2·2H2O where the metal is six-coordinate.
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