The effect of protonation on the spectroscopic and redox properties of a series of ferrocenoyl derivatives
In: Journal of the Chemical Society, Dalton Transactions, 1999, S. 57-62
Online
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Zugriff:
Five ferrocenoyl derivatives, containing pyridine (1–4) and benzene (5) moieties, were synthesised and characterised. The effect on the spectroscopic and redox properties of these compounds upon addition of H+ was studied, with NMR studies indicating that protonation took place at the pyridine nitrogens of 1–4. A crystal structure determination of the bis(amide) derivative 4 revealed the presence of two intramolecular hydrogen bonds; these remained intact in solution but were cleaved upon protonation. Protonation induced anodic shifts in the ferrocene-centred redox potential of ferrocene receptors 1, 2 and 4 and also changes in the electronic and NMR spectra of 1–4. A bathochromic shift in the lowest energy spin-allowed d–d band upon protonation was only observed for those compounds which also displayed a pronounced redox response.
Titel: |
The effect of protonation on the spectroscopic and redox properties of a series of ferrocenoyl derivatives
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Autor/in / Beteiligte Person: | Hassan, William W. ; Carr, Jonathan D. ; Tucker, James H. R. ; K. M. Abdul Malik ; Coles, Simon J. ; Hursthouse, Michael B. |
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Zeitschrift: | Journal of the Chemical Society, Dalton Transactions, 1999, S. 57-62 |
Veröffentlichung: | Royal Society of Chemistry (RSC), 1999 |
Medientyp: | unknown |
ISSN: | 1364-5447 (print) ; 0300-9246 (print) |
DOI: | 10.1039/a807453d |
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