Syntheses and characterisation of rhenium-(III) and -(V) complexes containing aminophosphine ligands. Crystal structures of [Re-V(OCl2)(OMe)L] and [Re-III(Cl3L)(PPh3)], L equals o-(diphenylphosphino)-N,N'-dimethylaniline (Articolo in rivista)

Type
Label
  • Syntheses and characterisation of rhenium-(III) and -(V) complexes containing aminophosphine ligands. Crystal structures of [Re-V(OCl2)(OMe)L] and [Re-III(Cl3L)(PPh3)], L equals o-(diphenylphosphino)-N,N'-dimethylaniline (Articolo in rivista) (literal)
Anno
  • 1997-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/a607584c (literal)
Alternative label
  • Tisato F.; Refosco F.; Bolzati C.; Cagnolini A.; Gatto S.; Bandoli G. (1997)
    Syntheses and characterisation of rhenium-(III) and -(V) complexes containing aminophosphine ligands. Crystal structures of [Re-V(OCl2)(OMe)L] and [Re-III(Cl3L)(PPh3)], L equals o-(diphenylphosphino)-N,N'-dimethylaniline
    in Journal of the Chemical Society. Dalton transactions (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Tisato F.; Refosco F.; Bolzati C.; Cagnolini A.; Gatto S.; Bandoli G. (literal)
Pagina inizio
  • 1421 (literal)
Pagina fine
  • 1427 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/Content/ArticleLanding/1997/DT/a607584c (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 8 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1-4 : ICTIMA-CNR, C.so Stati Uniti, 4-35020 Padova, Italy / 5,6 : Dipartimento di Scienze Farmaceutiche, Università di Padova, via F. Marzolo, 5-35131 Padova, Italy (literal)
Titolo
  • Syntheses and characterisation of rhenium-(III) and -(V) complexes containing aminophosphine ligands. Crystal structures of [Re-V(OCl2)(OMe)L] and [Re-III(Cl3L)(PPh3)], L equals o-(diphenylphosphino)-N,N'-dimethylaniline (literal)
Abstract
  • Substitution reactions of labile rhenium(V) precursors with o-(diphenylphosphino)-N,N?-dimethylaniline, L, gave a series of monooxorhenium(V) complexes of general formula [ReOX2Y(L)] (X = Y = Cl 1; X = Cl, Y = OMe 2) and [ReOX2(OEt)L] (X = Cl 3, Br 4 or 15). These complexes, which contain only one aminophosphine chelate, have a distorted-octahedral geometry, as evidenced by a crystal structure determination of 2. Reactions conducted in basic media, or treatment of 2 in the presence of the weakly co-ordinating trifluoromethanesulfonic acid, gave the bis(chelate) cationic complexes [ReO2L2]+ 6 and [ReCl2L2]+ 7, respectively. Similar ligand-exchange reactions between the lower-oxidation-state precursor [ReIIICl3(MeCN)(PPh3)2] and L or L? [o-(diphenylphosphino)aniline] still produced mono-substituted aminophosphine complexes, i.e. [ReIIICl3L(PPh3)] 8 or [ReIIICl3L?(PPh3)] 9 in which there is a meridional arrangement of chloride ligands along with a cis-phosphorus co-ordination. The crystal structure of 8 was determined: On the contrary, treatment of [ReIIIX3(MeCN)(PPh3)2] (X = Cl or Br) with L? in the presence of co-ordinating hydrohalogenic acid gave bis-substituted cationic complexes [ReX2L?2]+ (X = Cl 10 or Br 11). In spite of the paramagnetism of the low-spin d4 ion, all of the rhenium(III) complexes can be conveniently characterised in solution by proton NMR spectroscopy. (literal)
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