Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant Study
The complex formation between Cr(III) and morin was carried out in methanol and confirmed by analytical characterization using UV-Vis, IR, 1H NMR, and TG-DTA. UV-Vis shows significant bathochromic shift in benzoyl upon coordination as well as IR well illustrates the peak shift of C=O group and forma...
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/845208 |
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| author | Qadeer K. Panhwar Shahabuddin Memon |
| author_facet | Qadeer K. Panhwar Shahabuddin Memon |
| author_sort | Qadeer K. Panhwar |
| collection | DOAJ |
| description | The complex formation between Cr(III) and morin was carried out in methanol and confirmed by analytical characterization using UV-Vis, IR, 1H NMR, and TG-DTA. UV-Vis shows significant bathochromic shift in benzoyl upon coordination as well as IR well illustrates the peak shift of C=O group and formation of a O–Cr(III) bond. Likewise, 1H NMR studies clarify that Cr(III) metal ion replaces the 5OH proton hence; 5-hydroxy-4-keto site is employed by morin in chelation to form six-membered stable ring system out of three available chelating sites. In addition, TG-DTA denotes the presence of coordinated and crystalline water molecules. The melting point of the complex was found to be 389°C by DSC. In addition, Cr(III)-morin complex was found to be a more potent antioxidant than morin as evaluated by DPPH• and FRAP methods. |
| format | Article |
| id | doaj-art-4c2170e4b00d49b5b4ad2fa322af61a5 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-4c2170e4b00d49b5b4ad2fa322af61a52025-02-03T05:51:50ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/845208845208Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant StudyQadeer K. Panhwar0Shahabuddin Memon1Dr. M.A. Kazi Institute of Chemistry, National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, PakistanDr. M.A. Kazi Institute of Chemistry, National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, PakistanThe complex formation between Cr(III) and morin was carried out in methanol and confirmed by analytical characterization using UV-Vis, IR, 1H NMR, and TG-DTA. UV-Vis shows significant bathochromic shift in benzoyl upon coordination as well as IR well illustrates the peak shift of C=O group and formation of a O–Cr(III) bond. Likewise, 1H NMR studies clarify that Cr(III) metal ion replaces the 5OH proton hence; 5-hydroxy-4-keto site is employed by morin in chelation to form six-membered stable ring system out of three available chelating sites. In addition, TG-DTA denotes the presence of coordinated and crystalline water molecules. The melting point of the complex was found to be 389°C by DSC. In addition, Cr(III)-morin complex was found to be a more potent antioxidant than morin as evaluated by DPPH• and FRAP methods.http://dx.doi.org/10.1155/2014/845208 |
| spellingShingle | Qadeer K. Panhwar Shahabuddin Memon Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant Study The Scientific World Journal |
| title | Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant Study |
| title_full | Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant Study |
| title_fullStr | Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant Study |
| title_full_unstemmed | Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant Study |
| title_short | Synthesis of Cr(III)-Morin Complex: Characterization and Antioxidant Study |
| title_sort | synthesis of cr iii morin complex characterization and antioxidant study |
| url | http://dx.doi.org/10.1155/2014/845208 |
| work_keys_str_mv | AT qadeerkpanhwar synthesisofcriiimorincomplexcharacterizationandantioxidantstudy AT shahabuddinmemon synthesisofcriiimorincomplexcharacterizationandantioxidantstudy |