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Synthesis and Characterization of N-salicylidèneglycinate (KHL) And caffeine complexes with Cd (II),Cu(II),Ni(II), Zn (II)
Authors: EL AMANE MOHAMED*, BOUHDADA MOHAMED, HADDAD MUSTAPHA
Number of views: 765
A two series of metal complexes [M(LH)2(H2O)2] and [M(LH)2(caf)2]
M=Cu(II),Ni(II),Cd(II),Zn(II),caf= caffeine, KHL=N-salicylidèneglycinate, have
been synthesized and characterized by metal analysis, molar conductivity
,infrared, electronic and EPR spectral measurements N-salicylidèneglycinate
(KHL) were obtained by condensation of salicylaldehyde, glycine and KOH. The
stoichiometries reaction between the metal(II) ion and (KHL) ligand in molar
ratio of M:LH(1,2) resulted in the formation of the metal complexes of type [M
(LH)2 (H2O)2] or molar ratio of M:LH:Caf (1,2,2) of type [M (LH)2 (caf)2] (where
M=Cu(II),Ni(II),Cd(II),Zn(II),caf= caffeine. The ligand LH acts in a chelate
manner (NO) donor and coordination of water or caffeine by N9 coordination
through metal ion.