Fe (III) complexes of a bis-benzimidazolyl diamide ligand: Spectral and Catalytic studies
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| Title: | Fe (III) complexes of a bis-benzimidazolyl diamide ligand: Spectral and Catalytic studies |
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| Authors: | Ahuja, Gauri1 gauriahuja84@gmail.com, Mathur, Pavan pavanmat@yahoo.co.in |
| Source: | Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy. Dec2011, Vol. 83 Issue 1, p180-186. 7p. |
| Subjects: | Iron, Metal complexes, Imidazoles, Metal catalysts, Organic synthesis, Quadrupoles, Metal ions, Nuclear magnetic resonance spectroscopy |
| Abstract: | Abstract: A new tetradentate bis benzimidaozlyl diamide ligand N,N′-Bis (benzimidazol-2-yl-methyl)-hexane-1,6-dicarboxamide (GBSA) has been synthesized and utilized to prepare new Fe(III) complexes with exogenous anionic ligand X=Cl− and NO3 −. Isomer shift values are in the range found for Iron in the +3 oxidation state while Quadrupole Splitting indicates large distortion from a six coordinate geometry, a finding supported by low temperature EPR work. The E 1/2 values are found to be quite cathodic indicating stability of the Iron (III) complexes. The oxidation of alcohols was investigated using [Fe(GBSA)Cl3] as the catalyst with TBHP as an alternate source of oxygen. The respective carbonyl products have been isolated and characterized by 1H NMR, electronic spectroscopy, mass and IR spectral studies. [Copyright &y& Elsevier] |
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| Database: | Engineering Source |
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