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تحضير وتشخيص مشتق جديد من L حامض الاسكوربك حاوي على مجاميع الازيدو مع بعض معقداتها الفلزية == Synthesis and Identification of New Derivative of L - ascorbic Acid Containing Azido Groups with Some Metal Complexes
Author name:
ثرية عبد القادر طاهر
Supervisor name:
وليد خالد مهدي
General topic:
Chemistry
Specific topic:
Chemistry
Degree:
Master
University:
University of Baghdad
Language:
English
University location:
Baghdad
First pages:
25T1740 - p.pdf
Abstract:
The new poly nuclear coordination cluster have been prepared in the following manner : - (L - AZ) was prepared via reaction of L - AsCl8 with ten mole sodium azide in ethanol with drops of distilled water .The product has empirical formula ( C14H6O9N30 .C2H5OH ).The ( L - AZ) was characterized by TLC , elemental micro analysis( C . H .N ) 1H - NMR , FT - IR , UV - Visible and mass spectra . The new cluster complexes of ligand (L - AZ) with (VO)(II) , Cr (III) , Mn(II) ,Co(II) , Ni(II) , Cu(II) , Zn(II) , Cd(II) and Hg (II) ions were prepared by the reaction of metal chloride except ( VOSO4 ) with (L - AZ) in molar ratio ( M : L ) ( 10 : 1 ) giving the following molecular formula .1 - [VO10L - AZ ( H2O )20](SO4)10.20H2O.50C2H5OH2 - [Cr10L - AZ Cl30 (H2O)7] 6H2O . C2H5OH3 - [Mn10L - AZ Cl20 (H2O)4].2H2O.C2H5OH4 - [Co10L - AZ Cl20 (H2O)4].26H2O.C2H5OH5 - [Ni10L - AZCl20 (H2O)4].11H2O6 - [ Cu10L - AZCl20(H2O)4]7 - [Zn10L - AZCl20].35H2O.C2H5OH8 - [Cd10L - AZCl20].30H2O.C2H5OH9 - [Hg10L - AZCl20].nH2O.mC2H5OHNew clusters complexes are characterized on the basis of UV - Visible , FT - IR spectra , molar ratio , magnetic susceptibilities at room temperature , molar conductance measurements and atomic absorption of the metal percentage . It is concluded that all metal complexes of (L - AZ), the ligand coordinate to the metal ions through the azido terminal , triazonine and carbonyl azide , through azido and carbonyl groups except VO(II), Zn(II) , Cd(II) and Hg(II) coordinate through azide and traizonine . The complexes of Cr (III) , Mn (II) , Co (II) , Ni (II) and Cu (II) have an octahedral geometry.The (VO) (II) have an square pyramidal geometry,while Zn (II) , Cd (II) and Hg (II) showed a tetrahedral geometry. Furthermore, the optimijcal structures of the metal complex prepared with (L - AZ) ligand were carrie
