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  • Title: Spectral and physico-chemical investigations of novel homo-dinuclear di-micro2-alkoxo bridged Schiff base complexes: 57Fe Mössbauer parameters of the Fe(III) complex.
    Author: Siddiqi ZA, Khalid M, Kumar S, Shahid M, Noor S.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2010 Feb; 75(2):841-5. PubMed ID: 20036186.
    Abstract:
    Spectral and molecular model computations on homo-dinuclear complexes [M(2)L(2)(H(2)O)(2)Cl(2)] [L=1-(salicylaldeneamino)-3-hydroxypropane, M=Cr(3+), Mn(3+), Fe(3+), Co(3+), Ni(3+) or Cu(3+)] are consistent with a distorted hexa-coordinate geometry. X-band EPR spectral data indicated a rhombic distortion around Cu(II) ion. Magnetic moment and (57)Fe Mössbauer data confirmed a high-spin state electronic configuration (t(2g)(3)e(g)(2), S=5/2) and asymmetric ligand environment around Fe(III) with nuclear transitions Fe(+/-3/2-->1/2) exhibiting Kramer's double degeneracy. The neighboring Fe(III) nuclei in the homo-dinuclear species are antiferromagnetically coupled.
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