4,4′-Bipyridyl complexes of iron: Magnetic,Mössbauer and other spectroscopic studies |
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Authors: | Sudhir Burman Dixit N Sathyanarayana Augoustinos Anagnostopoulos |
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Institution: | (1) Department of Inorganic and Physical Chemistry, Indian Institute of Science, 560012 Bangalore, India;(2) Laboratory of Inorganic Chemistry, Aristotelian University, Thessaloniki 2, Greece |
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Abstract: | Summary 4,4-Bipyridyl (4,4-bipy) complexes of ferrous salts of the Fe(4,4-bipy)x(anion)y type (where x or y=1 or 2) and of ferric salts of the Fe(4,4-bipy)m(anion)n type (where m=1 or 2 and n=3) have been synthesised. Elemental analyses, i.r. and electronic spectra, magnetic and Mössbauer studies have been performed to characterize the complexes. 4,4-Bipy and some anions are inferred to act as bridging ligands. The magnetic moments, electronic and Mössbauer spectra suggest that the complexes are of high spin type with distorted octahedral structures. The value of the isomer shift and quadrupole splitting are discussed in terms of bonding of the ligand and anions. |
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