Dendritic (Phosphine)gold(I) Thiolate Complexes: Assessment of the Molecular Size through PGSE NMR Studies.

  1. Fernández, E.J. 1
  2. Laguna, A. 2
  3. Monge, M. 1
  4. Montiel, M. 1
  5. Olmos, M.E. 1
  6. Pérez, J. 1
  7. Sánchez-Forcada, E. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Instituto de Nanociencia y Materiales de Aragón
    info

    Instituto de Nanociencia y Materiales de Aragón

    Zaragoza, España

    ROR https://ror.org/031n2c920

Revista:
Dalton Transactions

ISSN: 1477-9226

Any de publicació: 2009

Volum: 3

Pàgines: 474-480

Tipus: Article

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DOI: 10.1039/B812500G SCOPUS: 2-s2.0-58149242641 WoS: WOS:000262007100010 GOOGLE SCHOLAR

Altres publicacions en: Dalton Transactions

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Resum

The reactions of the tetraphosphine ligand DAB-G0-(PPh2) 4 (DAB = 1,4-diaminobutane; G0 = Generation 0) or the octaphosphine ligand DAB-G1-(PPh2)8 (G1 = Generation 1) with the gold precursor [AuCl(tht)] (tht =tetrahydrothiophene) and the corresponding 4-substituted benzenethiolate lead to the (phosphine)gold(i) thiolate complexes [Au4(S-C6H4-X)4{(DAB-G0-(PPh 2)4}] (X = F (11), MeO (12), Me (13) and NO2 (14)) and [Au8(S-C6H4-X)8{(DAB-G1- (PPh2)4}] (X = F (15), MeO (16), Me (17) and NO 2 (18)). Complexes [Au4Cl4{(DAB-G0-(PPh 2)4}] 5 and [Au4(S-C6H 4-OMe)4{(DAB-G0-(PPh2)4}] 12 have been characterized by X-ray diffraction studies showing tetranuclear gold complexes in which the P-Au-X (X = Cl or S) structural units do not display aurophilic interactions. PGSE NMR studies of free ligands EN-G0-(PPh 2)4 (EN = 1,2-ethylenediamine), DAB-G0-(PPh 2)4, DAB-G1-(PPh2)8 and the (phosphine)gold(i) thiolate complexes permit the evaluation and comparison of the different molecular sizes depending on the ligand and the dendrimer generation. © 2009 The Royal Society of Chemistry.