Some Complexes of N-Aryl Furfural Nitrones with Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) Chlorides

Scientific Essay from the year 2011 in the subject Chemistry - Anorganic Chemistry, grade: 3, University of Mosul (DBS), language: English, abstract: Some new metal(II) dichloride complexes with the ligands substituted nitrones of the

general formula [ML2Cl2], where M= Co(II), Ni(II), Cu(II), Zn(II) and Cd(II),

L=OCH=CHCH=C-CH=N(O)C6H4X (X=H,p-CH3,CH3O,CH3CO,F,Cl,and Br) have

been prepared and characterized by elemental analysis, IR,1H,13C NMR and Vis/Uv

spectroscopy. The IR spectral data showed that the nitrone ligands coordinated with

the metal ion through the most active atom of the N-oxide to give square planner

coordinate (Cu,Ni,) complexes and (Zn,Cd,Co) tetrahedral complexes. No correlation

was observed between the N-O vibrations stretching hing frequency ¿(N-O) of the

complexes and the Hammet (¿) constants.