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This chapter reviews the literature reported during 2007 on iron, ruthenium and osmium. Because of the limitations of space, this review is deliberately very selective, and much fine work has not been cited. HighlightsThree eye-catching pieces of work, within the field of iron chemistry are: a Fe II complex which selectively catalyses the oxidation of C-H bonds; suspensions of polymer-coated iron oxide nanoparticles whose colour is affected by magnetic fields; and the characterisation of a iron(V) oxo macrocyclic species. Notable for ruthenium and osmium are the structural characterisation of RuOF 4 , OsOF 4 and OsOCl 4 . Iron oxidesA study of suspensions of polymer-coated superparamagnetic iron oxide (Fe 3 O 4 ) nanoparticles found that the colour of these colloidal suspensions was changed, reversibly, by altering the strength of the magnetic field. 1 Thermally cross-linked superparamagnetic Fe 3 O 4 nanoparticles have been tested as an in vivo imaging agent for cancer. 2 Fe 2 O 3 nanoparticles have been examined as catalysts for the decomposition of H 2 O 2 , with catalytic ability depending upon the degree of crystallinity rather than upon the surface area. 3 Deposition of Ag or Au on Fe 3 O 4 nanoparticles allows tuning of the plasmonic properties within the range 501-560 nm. 4 Iron(III) tert-butoxide was used as the precursor in the synthesis of Fe 2 O 3 nanotubes by atomic layer deposition; choice of the wall thickness has a pronounced effect on the magnetic properties of the tubes. 5
This chapter reviews the literature reported during 2007 on iron, ruthenium and osmium. Because of the limitations of space, this review is deliberately very selective, and much fine work has not been cited. HighlightsThree eye-catching pieces of work, within the field of iron chemistry are: a Fe II complex which selectively catalyses the oxidation of C-H bonds; suspensions of polymer-coated iron oxide nanoparticles whose colour is affected by magnetic fields; and the characterisation of a iron(V) oxo macrocyclic species. Notable for ruthenium and osmium are the structural characterisation of RuOF 4 , OsOF 4 and OsOCl 4 . Iron oxidesA study of suspensions of polymer-coated superparamagnetic iron oxide (Fe 3 O 4 ) nanoparticles found that the colour of these colloidal suspensions was changed, reversibly, by altering the strength of the magnetic field. 1 Thermally cross-linked superparamagnetic Fe 3 O 4 nanoparticles have been tested as an in vivo imaging agent for cancer. 2 Fe 2 O 3 nanoparticles have been examined as catalysts for the decomposition of H 2 O 2 , with catalytic ability depending upon the degree of crystallinity rather than upon the surface area. 3 Deposition of Ag or Au on Fe 3 O 4 nanoparticles allows tuning of the plasmonic properties within the range 501-560 nm. 4 Iron(III) tert-butoxide was used as the precursor in the synthesis of Fe 2 O 3 nanotubes by atomic layer deposition; choice of the wall thickness has a pronounced effect on the magnetic properties of the tubes. 5
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