Synthesis, Structural Characterization, and Antimicrobial Activities of Mn(II), Co(II), Ni(II), Cu(ll) and Zn(II) Complexes of Triazole-based Azodyes.pdfVIP
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Synthesis, Structural Characterization, and Antimicrobial Activities of Mn(II), Co(II), Ni(II), Cu(ll) and Zn(II) Complexes of Triazole-based Azodyes.pdf
FULLPAPE
Synthesis,StructuralCharacterization,andAntimicrobial
ActivitiesofMn(11),CoOt),Ni(11),Cu(tt)andZn(11)
ComplexesofTriazole·basedAzodyes
Khedr,AbdallaM.★,一 Gaber,Mohamed。 AbdE1.ZaherEmanH.。
,
ChemistryDepartment,FacultyofScience,TantaUniversiyt,Tanta,Egypt
。BotanyDepartment
, FaculytofScience,TantaUniversiyt,Tanta,Egypt
Thesynthesisandcharacterizationofnewtransitionmeta1complexesofMn(11),Co(II),Ni(II),Cu(II)andZn(II)
with 3-(2一hydroxynaph一1一ylazo)一1,2,4一triazole (HL) and 3-(2一hydroxy一3一carboxynaph一1一ylazo)一l,2,4一triazole
fHL 、havebeencarriedout.Theirstructureswereconfirmedbyelementalanalyses,thermalanalyses,spectraland
magneticdata.TheIR and H NMR spectraindicatedthatHL andHL coordinatedtothemetalionsasbidentate
monobasicligandsviathehydroxylO andazoN atoms.TheUV—Vis,ESR spectraandmagneticmomentdatarc—
vealedtheformationofoctahedralcomplexes[MnL (AcO)(H2O)3](1),C【oL (AcO)(H20)3]H·20 (2),[MnL一
(AcO)(H2O) (6)and [CoL (AcO)(H20)3】(7),[NiL (AcO)(H20)](3),[ZnL (AcO)(H20)]·H20 (5),N【iL一
(AcO)(H2O)](8),[ZnL (AcO)(H2O)l·10H2O (10)havetetrahedralgeometry,whereas[CuL (AcO)(H20)2】(4)and
[CuL (AcO)(H20)21.5H20 (9)havesquraepyramidalgeometry..ThemassspectraofthecomplexesunderEI—con—
ditionsshowedthehighestpeakscorrespondingtotheirmoleculra weights,basedontheatomicweightsof”Mn,
Co.’Ni0Cuand。Znisotopes;besidesotherpeakscontainingotherisotopesdistributionofthemeta1.Kinetic
andthermodynamicpraametersofthethemr aldecompositionstageswerecomputedfrom thethemr aldatausing
Coats—Redfernmethod.HL andcomplexes6— 10werefoundtoha
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