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KMID : 1059520110550010028
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Journal of the Korean Chemical Society
2011 Volume.55 No. 1 p.28 ~ p.37
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Spectroscopic, Thermal and Biological Studies on Newly Synthesized Cu(II), Ni(II) and Co(II) Complexes with 3-N-2-hydroxyethylamine Benzanthrone and 3-N-2-aminoethylamine Benzanthrone
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Refat, Moamen S.
Megahed, Adel S.
El-Deen, Ibrahim M.
Grabchev, Ivo
El-Ghol, Samir
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Abstract
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Spectroscopic (infrared, electronic and ¹H-NMR), elemental analyses CHN, molar conductivity, thermogravimetric analyses (TGA/DTG) and biological studies, of both benzanthrone derivatives 3-N-2-hydroxy ethylamine benzanthrone (HEAB) and 3-N-2-amino ethylamine benzanthrone (AEAB) with Cu(II), Co(II) and Ni(II) chlorides were discussed herein. Based on the above studies, HEAB ligand was suggested to be coordinated to each metal ions via hydroxo and amino groups to form [Cu(HEAB)(Cl)2].2H2O, [Co(HEAB)(Cl)2(H2O)2]. 8H2O and [Ni(HEAB)(Cl)2(H2O)2.7H2O coordinated complex. On the other hand, AEAB has an octahedral coordinated feature with formulas [Cu(AEAB)(Cl)2(H2O)2.2H2O, [Co(AEAB)(Cl)2(H2O)2.4H2O and [Ni(AEAB)(Cl)2(H2O)2.6H2O. The molar conductance values at for all complexes in DMF are slightly higher than free ligands; this supported the presence of chloride ions inside the coordination sphere. Both benzanthrone ligands and their complexes have been screened against different kinds of bacteria.
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KEYWORD
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Benzanthrone, transition metals, complexes, thermal studies, biological studies
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