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

number: 
1587
English
department: 
Degree: 
Author: 
Rasha Urfi Hammed
Supervisor: 
Prof. Dr. Ayad H. Jassem
year: 
2006

         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).