شماره ركورد :
44523
عنوان مقاله :
New Dinuclear Schiff Base Complexes of Mn(II) Derived from Amino Acids
پديد آورندگان :
al-shaheen, amira jihad mosul univ. - edu college - chemistry depart, iraq , al-mula, miaad adil kirkuk univ. - sci college - chemistry depart, iraq
از صفحه :
127
تا صفحه :
142
چكيده فارسي :
In this study we describe the synthesis and characterization of four and six coordinated compounds of Mn(II)with Schiff bases derived from vanillin with amino acids (glycine, Lserine, L-tyrosine, and L-phenylalanine).These complexes were characterized by many physicochemical methods such as elemental analysis (CHN),magnetic susceptibility, molar conductance as well as spectral studies such as IR and UV-Visible .The analytical data showed that the complexes having the formulas [Mn(VA)(H_2O)]_2,[Mn_2(VA)(CH_3COO)(H_2O)_2] ,whereA-=serine or tyrosine[Mn_2(Vg)(CH_3COO)(H_2O)_3], [Mn_2(VA*H_2)_2(H_2O)_2(NO_3)_2](NO_3)_2 and Na_2[Mn_2(VA*)_2(H_2O)_2(NO_3)_2] , A* = all the amino acids .The ligands behave as Tetradentate coordinating through the atoms NOOO, or tridentate NOO; where V=vanillin, A=amino acids (glycine and phenylalanine) that suggested tetrahedral and octahedral geometry.
كليدواژه :
Schiff base complexes , Mn(II) complexes , Amino Acid complexes
عنوان نشريه :
Kirkuk University Journal: Scientific Studies
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