http://www.cnr.it/ontology/cnr/individuo/prodotto/ID312753
X-ray structures versus NMR signals in pentacoordinate [PtX2(?2-CH2=CH2)(Me2phen)] (X = Cl, Br, I), complexes. (Articolo in rivista)
- Type
- Label
- X-ray structures versus NMR signals in pentacoordinate [PtX2(?2-CH2=CH2)(Me2phen)] (X = Cl, Br, I), complexes. (Articolo in rivista) (literal)
- Anno
- 2015-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.ica.2015.01.003 (literal)
- Alternative label
Benedetti M. 1, Papadia P. 1, Girelli C. R. 1, De Castro F. 1, Capitelli F. 2, Fanizzi F. P. 1 (2015)
X-ray structures versus NMR signals in pentacoordinate [PtX2(?2-CH2=CH2)(Me2phen)] (X = Cl, Br, I), complexes.
in Inorganica Chimica Acta (Testo stamp.)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Benedetti M. 1, Papadia P. 1, Girelli C. R. 1, De Castro F. 1, Capitelli F. 2, Fanizzi F. P. 1 (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1) Università del Salento
2) IC-CNR (literal)
- Titolo
- X-ray structures versus NMR signals in pentacoordinate [PtX2(?2-CH2=CH2)(Me2phen)] (X = Cl, Br, I), complexes. (literal)
- Abstract
- The single crystal X-ray structure of the pentacoordinate complex [PtBr2(g2-CH2@CH2)(Me2phen)],
Me2phen = 2,9-dimethyl-1,10-phenanthroline, is here reported for the first time. Comparison of the
complete series of [PtX2(g2-CH2@CH2)(Me2phen)] (X = Cl, Br, I) X-ray structures shows a very low
variability of the bond lengths and angles, in the trigonal equatorial plane (where g2-olefin and Me2phen
are bound), on varying the coordinated axial halogens. In first approximation, this suggests describing as
independents and not interacting the two subsystems constituted by the metal bonds with axial (X-Pt-X)
and equatorial ligands (Me2phen-Pt-g2-ethene). This means that the electric charge donated to the
metal, by the axial ligands, cannot substantially modify the bonds of the metal with the ligands in the
trigonal equatorial plane. The 1H, 13C, 15N and 195Pt NMR chemical shifts variations, studied as a function
of the ionic radius of the axial halides are here discussed. The NMR data strongly suggest the existence of
electric pseudo-ring currents circulating around the Pt-X axes and modulated by the ionic radius of the
coordinated halides. (literal)
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