Iron chelates: a challenge to chemists and Mössbauer spectroscopists
The speciation of iron in aqueous solutions containing Fe3+ and selectedchelates such as EDTA, EDDA, CDTA and HEDTA has been studied using transmission57Fe Mössbauer spectrometry in frozen solutions. The protonation of variouscomplexes as well as binuclear complex formation could be detected as a fu...
| Main Authors: | , , , , , , , , , , |
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| Format: | Conference Paper |
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Springer
2008
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| Subjects: | |
| Online Access: | http://download.springer.com/static/pdf/603/art%253A10.1007%252Fs10751-008-9713-x.pdf?auth66=1389931711_cf98d44f5bc04fafbe9b7f76088622d8&ext=.pdf http://hdl.handle.net/20.500.11937/40599 |
| _version_ | 1848755914784374784 |
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| author | Homonnay, Z. Szilagyi, Petra Vértes, A. Kuzmann, E. Sharma, V. Molnár, G. Bousseksou, A. Grenèche, J. Brausam, A. Meier, R. van Eldik, R. |
| author2 | N. S. Gajbhiye |
| author_facet | N. S. Gajbhiye Homonnay, Z. Szilagyi, Petra Vértes, A. Kuzmann, E. Sharma, V. Molnár, G. Bousseksou, A. Grenèche, J. Brausam, A. Meier, R. van Eldik, R. |
| author_sort | Homonnay, Z. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The speciation of iron in aqueous solutions containing Fe3+ and selectedchelates such as EDTA, EDDA, CDTA and HEDTA has been studied using transmission57Fe Mössbauer spectrometry in frozen solutions. The protonation of variouscomplexes as well as binuclear complex formation could be detected as a function ofpH. Autoreduction of Fe3+ to Fe2+ was observed in several cases. Reaction withhydrogen peroxide proved to be rather different for the four ligands, while thedihapto complex [XFe(?2-O2)]3- had surprisingly identical Mössbauer parametersfor X = EDTA, CDTA or HEDTA. Paramagnetic spin relaxation observed in the Mössbauer spectra was found to be strongly influenced by the identity of thechelating ligand, despite the basically spin-spin origin of the phenomenon. |
| first_indexed | 2025-11-14T09:03:53Z |
| format | Conference Paper |
| id | curtin-20.500.11937-40599 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:03:53Z |
| publishDate | 2008 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-405992022-12-07T06:50:49Z Iron chelates: a challenge to chemists and Mössbauer spectroscopists Homonnay, Z. Szilagyi, Petra Vértes, A. Kuzmann, E. Sharma, V. Molnár, G. Bousseksou, A. Grenèche, J. Brausam, A. Meier, R. van Eldik, R. N. S. Gajbhiye S. K. Date Iron chelates Mössbauer spectrometry Frozen solutions The speciation of iron in aqueous solutions containing Fe3+ and selectedchelates such as EDTA, EDDA, CDTA and HEDTA has been studied using transmission57Fe Mössbauer spectrometry in frozen solutions. The protonation of variouscomplexes as well as binuclear complex formation could be detected as a function ofpH. Autoreduction of Fe3+ to Fe2+ was observed in several cases. Reaction withhydrogen peroxide proved to be rather different for the four ligands, while thedihapto complex [XFe(?2-O2)]3- had surprisingly identical Mössbauer parametersfor X = EDTA, CDTA or HEDTA. Paramagnetic spin relaxation observed in the Mössbauer spectra was found to be strongly influenced by the identity of thechelating ligand, despite the basically spin-spin origin of the phenomenon. 2008 Conference Paper http://hdl.handle.net/20.500.11937/40599 10.1007/s10751-008-9713-x http://download.springer.com/static/pdf/603/art%253A10.1007%252Fs10751-008-9713-x.pdf?auth66=1389931711_cf98d44f5bc04fafbe9b7f76088622d8&ext=.pdf Springer restricted |
| spellingShingle | Iron chelates Mössbauer spectrometry Frozen solutions Homonnay, Z. Szilagyi, Petra Vértes, A. Kuzmann, E. Sharma, V. Molnár, G. Bousseksou, A. Grenèche, J. Brausam, A. Meier, R. van Eldik, R. Iron chelates: a challenge to chemists and Mössbauer spectroscopists |
| title | Iron chelates: a challenge to chemists and Mössbauer spectroscopists |
| title_full | Iron chelates: a challenge to chemists and Mössbauer spectroscopists |
| title_fullStr | Iron chelates: a challenge to chemists and Mössbauer spectroscopists |
| title_full_unstemmed | Iron chelates: a challenge to chemists and Mössbauer spectroscopists |
| title_short | Iron chelates: a challenge to chemists and Mössbauer spectroscopists |
| title_sort | iron chelates: a challenge to chemists and mössbauer spectroscopists |
| topic | Iron chelates Mössbauer spectrometry Frozen solutions |
| url | http://download.springer.com/static/pdf/603/art%253A10.1007%252Fs10751-008-9713-x.pdf?auth66=1389931711_cf98d44f5bc04fafbe9b7f76088622d8&ext=.pdf http://hdl.handle.net/20.500.11937/40599 |