Abstract
Copper(II), iron(III), cobalt(II,III), nickel(II), chromium(III), palladium(II), platinum(IV) and zinc(II) complexes of 2‐methyl‐7‐hydroxy‐5‐methoxy‐6‐formyl chromone thiosemicarbazone (H2L1), 2‐methyl‐5,7‐dimethoxy‐6‐formyl chromone thiosemicarbazone (HL2) have been prepared and characterized by conductance, magnetic, electronic, infrared and 1H NMR spectroscopic measurements as well as elemental and thermogravimetrical analyses. Octahedral structures are proposed for the Pt(IV), Fe(III), Co(II), Co(III), and Cr(III) complexes, whereas square–planar configurations are suggested for the Pd(II)and Cu(II) complexes. Moreover, spectral studies indicate that the H2L1–Ni complex is square–planar and the H2L1–Zn(II) complex is tetrahedral.
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