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Synthesis and characterization of [Cp*Fe-dicyclopenta(a,f)naphthalene-FeCp*] and [Cp*Fe-dicyclopenta(a,f)naphthalene-FeCp*] BF4 |
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| Authors: | Geraldo Alfonso Ivonne Chvez Vernica Arancibia Juan Manuel Manríquez María Teresa Garland Anna Roig Elies Molins Ricardo Fortunato Baggio |
| Institution: | a Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Correo 22, Santiago, Chile b Laboratorio de Cristalografía, Departamento de Física, Universidad de Chile, Chile. c Institut de Ciéncia de Materials de Barcelona (CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain d Departamento de Física, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina |
| Abstract: | Cp*Fe-dicyclopenta(a,f)naphthalene-FeCp*]n+ (Cp*=pentamethylciclopentadiene, n=0, 1), respectively named complexes V and VI, were synthesized and characterized. The X-ray structure has been solved and 1H-, 13C-NMR and elemental analysis were performed for the n=0 complex. Cyclic voltammetry showed a potential difference of 360 mV within the two redox peaks. An absorption band at 850 nm was assigned to an intervalence band. The Mössbauer investigations show a uniform Fe2+ environment for the neutral compound and two sites, assigned to Fe2+ and Fe3+ for the monoxidized compound. The information gathered by all the previously mentioned techniques indicates that the studied binuclear compound belongs to the mixed valence class II using Robin and Day classification. |
| Keywords: | Iron complexes Dihydrodicyclopentanaphthalene Binuclear complexes Mixed valence complexes |
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