Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II)
The mixed ligand complexes of Co(II), Ni(II), Cu(II) and Zn(II) with Schiff bases N-(2-hydroxy-1-naphthylidene)-4-methylaniline (L1H) and N-(2-hydroxybenzylidene)-2,3-dimethylaniline (L2H) have been synthesized and characterized. The resulting complexes were characterized by elemental analysis, ther...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2011-01-01
|
| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/598171 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832566776176574464 |
|---|---|
| author | A. K. Mapari M. S. Hate K. V. Mangaonkar |
| author_facet | A. K. Mapari M. S. Hate K. V. Mangaonkar |
| author_sort | A. K. Mapari |
| collection | DOAJ |
| description | The mixed ligand complexes of Co(II), Ni(II), Cu(II) and Zn(II) with Schiff bases N-(2-hydroxy-1-naphthylidene)-4-methylaniline (L1H) and N-(2-hydroxybenzylidene)-2,3-dimethylaniline (L2H) have been synthesized and characterized. The resulting complexes were characterized by elemental analysis, thermogravimetric analysis, magnetic moment measurements, conductivity measurements, 1H NMR, IR, UV-visible and ESR spectral studies. The Schiff bases acts as bidentate monobasic ligands, coordinating through deprotonated phenolic oxygen and azomethine nitrogen atoms. The complexes are non-electrolytic in DMSO. The presence of the two coordinated water molecules in these complexes was indicated by IR spectra and thermogravimetric analysis of the complexes. From the analytical and spectral data the stoichiometry of these complexes have been found to be [M(L1)(L2)(H2O)2] {where M = Co(II) , Ni(II), Cu(II) and Zn(II)}. It is found that Co(II), Ni(II), Cu(II) and Zn(II) complexes exhibited octahedral geometry. The antimicrobial activities of ligands and their mixed ligand complexes were screened by disc diffusion method. It is found that the metal complexes have higher antimicrobial activity than the free ligand. |
| format | Article |
| id | doaj-art-a4e3a217129d482da5dee5a8e97cc980 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-a4e3a217129d482da5dee5a8e97cc9802025-02-03T01:03:21ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-01831258126310.1155/2011/598171Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II)A. K. Mapari0M. S. Hate1K. V. Mangaonkar2Ramnarain Ruia College, Matunga (E), Mumbai-400019, Maharashtra, IndiaRamnarain Ruia College, Matunga (E), Mumbai-400019, Maharashtra, IndiaMithibai College, Vile-Parle (W), Mumbai-400056, Maharashtra, IndiaThe mixed ligand complexes of Co(II), Ni(II), Cu(II) and Zn(II) with Schiff bases N-(2-hydroxy-1-naphthylidene)-4-methylaniline (L1H) and N-(2-hydroxybenzylidene)-2,3-dimethylaniline (L2H) have been synthesized and characterized. The resulting complexes were characterized by elemental analysis, thermogravimetric analysis, magnetic moment measurements, conductivity measurements, 1H NMR, IR, UV-visible and ESR spectral studies. The Schiff bases acts as bidentate monobasic ligands, coordinating through deprotonated phenolic oxygen and azomethine nitrogen atoms. The complexes are non-electrolytic in DMSO. The presence of the two coordinated water molecules in these complexes was indicated by IR spectra and thermogravimetric analysis of the complexes. From the analytical and spectral data the stoichiometry of these complexes have been found to be [M(L1)(L2)(H2O)2] {where M = Co(II) , Ni(II), Cu(II) and Zn(II)}. It is found that Co(II), Ni(II), Cu(II) and Zn(II) complexes exhibited octahedral geometry. The antimicrobial activities of ligands and their mixed ligand complexes were screened by disc diffusion method. It is found that the metal complexes have higher antimicrobial activity than the free ligand.http://dx.doi.org/10.1155/2011/598171 |
| spellingShingle | A. K. Mapari M. S. Hate K. V. Mangaonkar Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II) E-Journal of Chemistry |
| title | Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II) |
| title_full | Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II) |
| title_fullStr | Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II) |
| title_full_unstemmed | Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II) |
| title_short | Synthesis, Characterization and Antimicrobial Activity of Mixed Schiff Base Ligand Complexes of Co(II), Ni(II), Cu(II) and Zn(II) |
| title_sort | synthesis characterization and antimicrobial activity of mixed schiff base ligand complexes of co ii ni ii cu ii and zn ii |
| url | http://dx.doi.org/10.1155/2011/598171 |
| work_keys_str_mv | AT akmapari synthesischaracterizationandantimicrobialactivityofmixedschiffbaseligandcomplexesofcoiiniiicuiiandznii AT mshate synthesischaracterizationandantimicrobialactivityofmixedschiffbaseligandcomplexesofcoiiniiicuiiandznii AT kvmangaonkar synthesischaracterizationandantimicrobialactivityofmixedschiffbaseligandcomplexesofcoiiniiicuiiandznii |