Preparation and characterization of transition metal complexes of schiff base and nitrides derived from cyclohexyl amine and aromatic aldehyde

         A new schiff base contaning cyclohexyl moiety and phenyl group i.e. p-hydroxy benzyliden phenyl imine (CSSB), have been prepared, and was reacted with a number of transition metal ions, which include: (V⁺⁴ , Cr⁺³ , Fe⁺² , Co⁺² , Ni⁺² , Cu⁺² , Zn⁺² , Cd⁺² , Hg⁺² and Pd⁺²) CSSB was characterized by it’s FT-IR spectrum, while it’s complexes were characterized by their electronic (uv-vis) spectra and vibrational (FT-IR) spectra, metal analysis (using atomic absorption technique), conductivity and magnetic susciptibility measurments.The new colored complexes show to have the following general formula

1-[M L₂ (X) (M)].S

X=M=zero                      S=Zero                            when M= Vo(II) X=Cl,M=H₂O                  S= Zero                           when M= Cr(III) X=M=H₂O                      S=2H₂O                           when M=Fe(II)

X=NO₃ ,M=H₂O              S=Zero                            when M= Co(II) X=M=H₂O                      S=Zero                            when M=Ni(II)

X=M=H₂O                      S=Zero                            when M=Cu(II) X=M=Zero                     S=2Cl                              when M= Zn(II)

X=M=Zero                     S=2Cl.C₂H₅OH                when M= Cd(II) X=M=Zero                     S= 2Cl.C₂H₅OH               when M= Hg(II)                       X=M=Zero                     S=2Cl                              when M= Pd(II)

       The vibrational and elucidation electronic spectral studies and conductivity measurment were very useful in the illusidation of the structural formula of the prepared complexes, which were either octahedral (Vo⁺² , Cr⁺³ , Cu⁺² , Co⁺² , Ni⁺² , Fe⁺²), square planar (for Pd⁺²) or tetrahedral (for Zn⁺² , Cd⁺² , Hg⁺²).