SYNTHESIS AND CHARACTERIZATION OF NEUTRAL TECHNETIUM(III) COMPLEXES WITH MIXED S,P-BIDENTATE PHOSPHINE THIOLATE LIGANDS - CRYSTAL-STRUCTURE OF [TC(SCH2CH2PPH2)2(SCH2CH2PPH2O)] (Articolo in rivista)

Type
Label
  • SYNTHESIS AND CHARACTERIZATION OF NEUTRAL TECHNETIUM(III) COMPLEXES WITH MIXED S,P-BIDENTATE PHOSPHINE THIOLATE LIGANDS - CRYSTAL-STRUCTURE OF [TC(SCH2CH2PPH2)2(SCH2CH2PPH2O)] (Articolo in rivista) (literal)
Anno
  • 1994-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/dt9940001453 (literal)
Alternative label
  • Tisato F.; Refosco F.; Bandoli G.; Bolzati C.; Moresco A. (1994)
    SYNTHESIS AND CHARACTERIZATION OF NEUTRAL TECHNETIUM(III) COMPLEXES WITH MIXED S,P-BIDENTATE PHOSPHINE THIOLATE LIGANDS - CRYSTAL-STRUCTURE OF [TC(SCH2CH2PPH2)2(SCH2CH2PPH2O)]
    in Journal of the Chemical Society. Dalton transactions (Print); ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE,, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Tisato F.; Refosco F.; Bandoli G.; Bolzati C.; Moresco A. (literal)
Pagina inizio
  • 1453 (literal)
Pagina fine
  • 1461 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/Content/ArticleLanding/1994/DT/dt9940001453 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 9 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1,2,5 Istituto di Chimica e Tecnologie Inorganiche e dei Materiali Avanzati, C.N.R., Area della Ricerca, Corso Stati Uniti 4, 35020 Padova, Italy 3 Centro Interdipartimentale di Chimica Bioinorganica Applicata, Dipartimenio di Scienze Farmaceutiche, Università di Padova, via F. Marzolo 5, 35131 Padova, Italy 4 Cattedra di Medicina Nucleare, Università di Ferrara, via L. Borsari 46, 44100 Ferrara, Italy (literal)
Titolo
  • SYNTHESIS AND CHARACTERIZATION OF NEUTRAL TECHNETIUM(III) COMPLEXES WITH MIXED S,P-BIDENTATE PHOSPHINE THIOLATE LIGANDS - CRYSTAL-STRUCTURE OF [TC(SCH2CH2PPH2)2(SCH2CH2PPH2O)] (literal)
Abstract
  • Reduction-substitution reactions of [TcO4]- with an excess of the mixed bidentate thiol-phosphine ligands HL(n) [L1 = 2-(diphenylphosphino)ethanethiolate; L2 = 2-(diphenylphosphino)propanethiolate and L3 = 2-(diphenylphosphino)thiophenolate] gave neutral five-co-ordinate technetium(III) complexes of the type [TcL(n)2(O=L(n))] (n = 11 or 22). However, the aromatic phosphine-thiol ligand (n = 3) gave six-co-ordinated [TcL3(3)]3. The five-co-ordinated complexes are diamagnetic and exhibit a trigonal-bipyramidal geometry in which two pi-acid phosphorus donors of two chelates are co-ordinated mutually trans in the axial positions, with the corresponding thiolate sulfur atoms on the equatorial plane. A further thiolate group completes the basal-plane co-ordination leaving a pendant phosphorus donor outside the co-ordination sphere. This is oxidized to phosphine oxide, which was revealed by a crystal structure determination of 1: triclinic, space group P1BAR, with Z = 2, a = 9.991 (4), b = 12.417(4), c = 18.687(8) angstrom, alpha = 73.37(3), beta = 76.88(3) and gamma = 73.68(3)-degrees; R converged to 0.0703 using 2765 observed reflections. In addition, the compounds were characterized by elemental analysis, IR, H-1 and P-31 NMR, UV/VIS and FAB spectroscopies and cyclic voltammetric measurements. The occurrence of trigonal-bipyramidal vs. octahedral geometry is discussed in terms of ligand steric requirements and electronic factors governing the metal-donor interactions. (literal)
Editore
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Editore di
Insieme di parole chiave di
data.CNR.it