Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives
Carbonyl complexes of Chromium, molybdenum and tungsten of composition, [M(CO)4L-L], (where M= Cr, Mo or W and L-L= benzoic acid[1-(Furan-2-yl)methylene]hydrazide (BFMH), benzoic acid[(thiophene-2-yl)methylene]hydrazide (BTMH), benzoic acid[1-(thiophene-2-yl)ethylidene] hydrazide (BTEH), benzoic aci...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2012/971981 |
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| author | Mohd Saleem Mohita Sharma Simpy Mahajan H. N. Sheikh B. L. Kalsotra |
| author_facet | Mohd Saleem Mohita Sharma Simpy Mahajan H. N. Sheikh B. L. Kalsotra |
| author_sort | Mohd Saleem |
| collection | DOAJ |
| description | Carbonyl complexes of Chromium, molybdenum and tungsten of composition, [M(CO)4L-L], (where M= Cr, Mo or W and L-L= benzoic acid[1-(Furan-2-yl)methylene]hydrazide (BFMH), benzoic acid[(thiophene-2-yl)methylene]hydrazide (BTMH), benzoic acid[1-(thiophene-2-yl)ethylidene] hydrazide (BTEH), benzoic acid (phenylmethylene)hydrazide (BPMH) and benzoic acid[1-(anisol-3-yl)methylene] hydrazide (BAMH) are reported. These have been prepared by refluxing metal carbonyls and the ligands in 1:1molar ratio. The complexes were characterized by elemental analysis, IR spectra, UV-vis spectra, 1H NMR, TGA/DTA, conductivity and magnetic susceptibility measurements. The IR bands suggest that in all the complexes the ligands behave as neutral bidentate chelating type coordinating metal through carbonyl oxygen and azomethine nitrogen. The CO force constants and CO-CO interaction constants for these derivatives have been calculated using Cotton-Kraihanzel secular equations, which indicate poor π-bonding ability of the coordinated ligands. |
| format | Article |
| id | doaj-art-21821cd20fc24e848f16dc3422e052cf |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
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| series | E-Journal of Chemistry |
| spelling | doaj-art-21821cd20fc24e848f16dc3422e052cf2025-02-03T06:44:36ZengWileyE-Journal of Chemistry0973-49452090-98102012-01-019280781710.1155/2012/971981Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone DerivativesMohd Saleem0Mohita Sharma1Simpy Mahajan2H. N. Sheikh3B. L. Kalsotra4Department of Chemistry, University of Jammu, Jammu-1800 06, IndiaDepartment of Chemistry, University of Jammu, Jammu-1800 06, IndiaDepartment of Chemistry, University of Jammu, Jammu-1800 06, IndiaDepartment of Chemistry, University of Jammu, Jammu-1800 06, IndiaDepartment of Chemistry, University of Jammu, Jammu-1800 06, IndiaCarbonyl complexes of Chromium, molybdenum and tungsten of composition, [M(CO)4L-L], (where M= Cr, Mo or W and L-L= benzoic acid[1-(Furan-2-yl)methylene]hydrazide (BFMH), benzoic acid[(thiophene-2-yl)methylene]hydrazide (BTMH), benzoic acid[1-(thiophene-2-yl)ethylidene] hydrazide (BTEH), benzoic acid (phenylmethylene)hydrazide (BPMH) and benzoic acid[1-(anisol-3-yl)methylene] hydrazide (BAMH) are reported. These have been prepared by refluxing metal carbonyls and the ligands in 1:1molar ratio. The complexes were characterized by elemental analysis, IR spectra, UV-vis spectra, 1H NMR, TGA/DTA, conductivity and magnetic susceptibility measurements. The IR bands suggest that in all the complexes the ligands behave as neutral bidentate chelating type coordinating metal through carbonyl oxygen and azomethine nitrogen. The CO force constants and CO-CO interaction constants for these derivatives have been calculated using Cotton-Kraihanzel secular equations, which indicate poor π-bonding ability of the coordinated ligands.http://dx.doi.org/10.1155/2012/971981 |
| spellingShingle | Mohd Saleem Mohita Sharma Simpy Mahajan H. N. Sheikh B. L. Kalsotra Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives E-Journal of Chemistry |
| title | Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives |
| title_full | Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives |
| title_fullStr | Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives |
| title_full_unstemmed | Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives |
| title_short | Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives |
| title_sort | synthesis and characterization of group 6 metal carbonyl complexes of aroyl hydrazone derivatives |
| url | http://dx.doi.org/10.1155/2012/971981 |
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