Cyclic dimers of variable size, formed from FeCu carbide clusters: Synthesis, structure and electrochemical behaviour of [{Fe4C(CO)12Cu2(m-X)}2]n -, (X = phenylthiolate, pyrazolate, (n = 2) or diphenolate (n = 4))
Articolo
Data di Pubblicazione:
2013
Citazione:
Cyclic dimers of variable size, formed from FeCu carbide clusters: Synthesis, structure and electrochemical behaviour of [{Fe4C(CO)12Cu2(m-X)}2]n -, (X = phenylthiolate, pyrazolate, (n = 2) or diphenolate (n = 4)) / R. Della Pergola, A. Sironi, M. Moret, S. Bergantin, P.R. Mussini, M. Panigati. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 728(2013), pp. 23-29.
Abstract:
dimers of composition [{Fe4C(CO)12Cu2(m-X)}2-]n , where X are bridging ligands with different size, donor
atom and charge: {X = phenylthiolate, PhS , (n = 2 (1)), pyrazolate, C3H3N2
, (n = 2 (2)), diphenolate, (O
eC6H4eC6H4eO2 , n = 4 (3)}. All anions have been characterized by elemental analysis, IR and 1H NMR
spectroscopy and by single crystal X-ray diffraction. They share the same structure with the known anion
[{Fe4C(CO)12Cu2(m-Cl)}2]2 (X = Cl, (4)), with the obvious difference in the size of the ring, depending on
the number of atoms in the spacer. All these macrocycles display rich electrochemical behaviour, undergoing
two reversible reductions and two irreversible monoelectronic oxidations, poorly affected by
the substituent and therefore assigned to the Fe4C core. Electronic communication increases in the order
3 z 4 > 1 > 2.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Copper; Electrochemistry; Heterometallic clusters; Interstitial carbide; Iron; Substitution reactions
Elenco autori:
R. Della Pergola, A. Sironi, M. Moret, S. Bergantin, P.R. Mussini, M. Panigati
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