عنوان المقالة:تحضير , الكيمياء الفيزيائية لمعقدات مختلطة الليكاند من الالنين مع المثبريم Synthesis, Physico-Chemical and Antimicrobial Activities Co(II),Ni (II) ,Cu(II), Zn(II),Cd(II) and Hg(II) MixedLigand Complexes of L- Alanine and Trimethoprim Antibiotic
The Co (II), Ni (II) ,Cu(II), Zn(II) ,Cd(II) and Hg(II) complexes of mixed of amino acid (L-Alanine ) and
Trimethoprim antibiotic were synthesized.
The complexes were characterized using melting point, conductivity measurement and determination the
percentage of the metal in the complexes by flame (AAS). Magnetic susceptibility, Spectroscopic Method [FTIR and UV-Vis].
The general formula have been given for the prepared mixed ligand complexes
[M(Ala)2(TMP)(H2O)]
where L- alanine (abbreviated as (Ala ) = (C5H9NO2)
deprotonated primary ligand, L- Alanine ion .= (C5H8NO2-)
Trimethoprim (abbreviated as (TMP ) = C10H11N3O3S
M(II) = Co (II),Ni(II) ,Cu(II), Zn(II) ,Cd(II) and Hg(II).
The results showed that the deprotonated L- Alanine by KOH (Ala- K+) act as
uni nagative bi dentate ligand , was coordinated to the metal ions through the oxygen of the carboxylic group
(−COO−), and the nitrogen of the amine group (−NH2) while Trimethoprim antibiotic act as mono dentate
ligand , was coordinated to the metal ions through the nitrogen of the pyrimidine group.
Keywords: Trimethoprim antibiotics , L- Alanine) complexes & Antibacterial activity
Abstract
The Co (II), Ni (II) ,Cu(II), Zn(II) ,Cd(II) and Hg(II) complexes of mixed of amino acid (L-Alanine ) and
Trimethoprim antibiotic were synthesized.
The complexes were characterized using melting point, conductivity measurement and determination the
percentage of the metal in the complexes by flame (AAS). Magnetic susceptibility, Spectroscopic Method [FTIR and UV-Vis].
The general formula have been given for the prepared mixed ligand complexes
[M(Ala)2(TMP)(H2O)]
where L- alanine (abbreviated as (Ala ) = (C5H9NO2)
deprotonated primary ligand, L- Alanine ion .= (C5H8NO2-)
Trimethoprim (abbreviated as (TMP ) = C10H11N3O3S
M(II) = Co (II),Ni(II) ,Cu(II), Zn(II) ,Cd(II) and Hg(II).
The results showed that the deprotonated L- Alanine by KOH (Ala- K+) act as
uni nagative bi dentate ligand , was coordinated to the metal ions through the oxygen of the carboxylic group
(−COO−), and the nitrogen of the amine group (−NH2) while Trimethoprim antibiotic act as mono dentate
ligand , was coordinated to the metal ions through the nitrogen of the pyrimidine group.
Keywords: Trimethoprim antibiotics , L- Alanine) complexes & Antibacterial activity
ا.د. لقاء خالد عبد الكريم | lekaa khalid abd al-karem | 19539