Modulation of properties in analogues of Zeise's anion on changing the ligand trans to ethene. X-Ray crystal structures of trans-[PtCl2(OH)(eta(2)-C2H4)](-) and trans-[PtCl2(eta(1)-CH2NO2)(eta(2)-C2H4)](-) (Articolo in rivista)

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  • Modulation of properties in analogues of Zeise's anion on changing the ligand trans to ethene. X-Ray crystal structures of trans-[PtCl2(OH)(eta(2)-C2H4)](-) and trans-[PtCl2(eta(1)-CH2NO2)(eta(2)-C2H4)](-) (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c2dt11934j (literal)
Alternative label
  • Benedetti, Michele; Barone, Carmen R.; Antonucci, Daniela; Vecchio, Vita M.; Ienco, Andrea; Maresca, Luciana; Natile, Giovanni; Fanizzi, Francesco P. (2012)
    Modulation of properties in analogues of Zeise's anion on changing the ligand trans to ethene. X-Ray crystal structures of trans-[PtCl2(OH)(eta(2)-C2H4)](-) and trans-[PtCl2(eta(1)-CH2NO2)(eta(2)-C2H4)](-)
    in Dalton transactions (2003. Print); ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE,, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Benedetti, Michele; Barone, Carmen R.; Antonucci, Daniela; Vecchio, Vita M.; Ienco, Andrea; Maresca, Luciana; Natile, Giovanni; Fanizzi, Francesco P. (literal)
Pagina inizio
  • 3014 (literal)
Pagina fine
  • 3021 (literal)
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  • 41 (literal)
Rivista
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  • 10 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • 1. Univ Salento, Dipartimento Sci & Tecnol Biol & Ambientali, I-73100 Lecce, Italy 2. Univ Bari, Dipartimento Farmacochim, I-70125 Bari, Italy 3. CNR, Ist Chim Composti Organometallici ICCOM, I-50019 Florence, Italy (literal)
Titolo
  • Modulation of properties in analogues of Zeise's anion on changing the ligand trans to ethene. X-Ray crystal structures of trans-[PtCl2(OH)(eta(2)-C2H4)](-) and trans-[PtCl2(eta(1)-CH2NO2)(eta(2)-C2H4)](-) (literal)
Abstract
  • To get further insight in the reaction of nucleophilic substitution upon changing the ligand trans to a eta(2)-olefin, the reactivity of some monoanionic platinum(II) complexes (trans-[PtCl2X(eta(2)-C2H4)](-), X = Cl-, 1, OH-, 2, and CH2NO2-, 3) towards pyridines with different steric hindrance (py, 4-Mepy, and 2,6-Me(2)py) has been tested. All crystallographic (2 and 3 reported for the first time) and spectroscopic data are in accord with a platinum-olefin interaction decreasing in the order 2 > 1 > 3, paralleling the decreasing electronegativity of the donor atom (O > Cl > C). Not only the platinum-olefin bond but also the bond between platinum and the ligand trans to the olefin appear to be strongest in 2 (Pt-O distance at the lower limit for this type of bond). In the reaction with py, the ligand trans to the olefin is displaced in 1 and 2. Moreover the reaction is in equilibrium in the case of sterically hindered 2,6-Me2py, the equilibrium being shifted moderately or prevalently toward the reagents in the case of 1 and 2, respectively. In the case of 3, the reaction with pyridines leads to substitution of the olefin instead of the carbanion. This is in accord with the observation that carbanions strongly weaken the trans Pt-olefin bond. (literal)
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