SYNTHESIS AND CHARACTERIZATION OF ZINC(II) AND COPPER(II) COMPLEXES OF EMBELIN

J.K. Cherutoi; L.L. Cheruiyot; C.P. Kiprono*

doi:10.4314/bcse.v19i2.21135

J.K. Cherutoi Department of Chemical Technology, Eldoret Polytechnic, P.O. Box 4461, Eldoret, Kenya
L.L. Cheruiyot Department of Chemistry, Faculty of Science, Chepkoilel Campus, Moi University, P.O. Box 1125, Eldoret, Kenya
C.P. Kiprono* Department of Chemistry, Faculty of Science, Chepkoilel Campus, Moi University, P.O. Box 1125, Eldoret, Kenya

DOI: 10.4314/bcse.v19i2.21135

Keywords: Zinc(II) complex, Copper(II) complex, Embelin

Abstract

The synthesis and characterization of zinc(II) and copper(II) complexes of embelin (1), C₁₇H₂₆O₄, are described. Zinc(II) and copper(II) ions reacted with (1) (an orange compound) in a 1:2 ratio to yield purple and green complexes, respectively. IR analysis of the two complexes showed that the metal ions were co-ordinated through the carbonyl and the hydroxyl oxygen atoms. Elemental analyses (AAS and C, H, N) of the complexes gave values that are consistent with six co-ordinate octahedral geometry about the metal ions. Molecular formulae, ZnC₃₄H₅₀N₂O₁₄ and CuC₃₄H₅₄O₁₀ for the zinc(II) and copper(II) complexes are proposed.

KEY WORDS: Zinc(II) complex, Copper(II) complex, Embelin

Bull. Chem. Soc. Ethiop. 2005, 19(2), 295-299.

SYNTHESIS AND CHARACTERIZATION OF ZINC(II) AND COPPER(II) COMPLEXES OF EMBELIN

Abstract

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