The electronic properties of the family of pyridyl- and pyrimidyl- ferrocenyl complexes [Fe(h5-C5H4-4-C5H4N)(h5-C5H5)] (1), [Fe(h5-C5H4-4-C5H4N)2] (2), [Fe(h5-C5H4-4-C5H4N)(h5-C5H4-5-C4H3N2)] (3), [Fe(h5-C5H4-5-C4H3N2)2] (4), [Fe(h5-C5H4-C6H4-4-C5H4N)(h5-C5H4-5-C5H4N)] (5), and [Fe(h5-C5H4-C6H4-4-C5H4N)2] (6), prepd. by Suzuki coupling starting from ferrocenyl diboronic acid, were studied by electrochem., spectroscopic, and quantum-chem. methods. All complexes display photo- and electrochem. stability and strong electronic interactions in the ground state between the ferrocenyl moiety and pyridine/pyrimidine rings. The efficient modulation of the potentials of ferrocenyl-based oxidn. is strongly dependent on the nature of the hetero ring. These features, together with their high chelating ability, are potentially useful in the prepn. of redox-active complexes of complexes such as mixed-metal metallamacrocycles.
D. Paolucci, M. Marcaccio, C. Bruno, D. Braga, M. Polito, F. Paolucci, et al. (2005). Ferrocenyl-Based p-Conjugated Complexes: Modulation of Electronic Properties by Symmetric/Asymmetric Cyclopentadienyl Substitution. ORGANOMETALLICS, 24, 1198-1203 [10.1021/om049212l].
Ferrocenyl-Based p-Conjugated Complexes: Modulation of Electronic Properties by Symmetric/Asymmetric Cyclopentadienyl Substitution.
PAOLUCCI, DEMIS;MARCACCIO, MASSIMO;BRUNO, CARLO;BRAGA, DARIO;POLITO, MARCO;PAOLUCCI, FRANCESCO;GREPIONI, FABRIZIA
2005
Abstract
The electronic properties of the family of pyridyl- and pyrimidyl- ferrocenyl complexes [Fe(h5-C5H4-4-C5H4N)(h5-C5H5)] (1), [Fe(h5-C5H4-4-C5H4N)2] (2), [Fe(h5-C5H4-4-C5H4N)(h5-C5H4-5-C4H3N2)] (3), [Fe(h5-C5H4-5-C4H3N2)2] (4), [Fe(h5-C5H4-C6H4-4-C5H4N)(h5-C5H4-5-C5H4N)] (5), and [Fe(h5-C5H4-C6H4-4-C5H4N)2] (6), prepd. by Suzuki coupling starting from ferrocenyl diboronic acid, were studied by electrochem., spectroscopic, and quantum-chem. methods. All complexes display photo- and electrochem. stability and strong electronic interactions in the ground state between the ferrocenyl moiety and pyridine/pyrimidine rings. The efficient modulation of the potentials of ferrocenyl-based oxidn. is strongly dependent on the nature of the hetero ring. These features, together with their high chelating ability, are potentially useful in the prepn. of redox-active complexes of complexes such as mixed-metal metallamacrocycles.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
