New Au(i)-Cu(i) heterometallic complexes: The role of bridging pyridazine ligands in the presence of unsupported metallophilic interactions

  1. Donamaría, R. 1
  2. Fernández, E.J. 1
  3. López-De-Luzuriaga, J.M. 1
  4. Monge, M. 1
  5. Olmos, M.E. 1
  6. Pascual, D. 1
  7. Rodríguez-Castillo, M. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Aldizkaria:
Dalton Transactions

ISSN: 1477-9226

Argitalpen urtea: 2017

Alea: 46

Zenbakia: 33

Orrialdeak: 10941-10949

Mota: Artikulua

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DOI: 10.1039/C7DT02229H SCOPUS: 2-s2.0-85028085083 WoS: WOS:000408696800021 GOOGLE SCHOLAR

Beste argitalpen batzuk: Dalton Transactions

Lotura duten proiektuak

Aplicaciones de compuestos oro en fotofísica, medicina y catálisis

2016/00155/001

Laburpena

The reaction of the polymers [Au2Cu2(C6X5)4(NCMe)2]n (X = Cl (1), F (2)) with the aromatic N-donor ligand pyridazine in different molar ratios gives rise to new Au(i)/Cu(i) heterometallic complexes [AuCu(C6Cl5)2(μ2-C4H4N2)(NCMe)]2 (3), [AuCu(C6X5)2(μ2-C4H4N2)(C4H4N2)]2 (X = Cl (4), X = F (6)) and [Cu2(μ2-C4H4N2)3(NCMe)2][Au(C6F5)2]2 (5). In all cases, the close proximity of the donor atoms in the diazine ligand leads to discrete molecules where two copper centres are connected by two or three bridging pyridazine ligands. In this way, focusing on the number of bridging ligands present in the molecules, unsupported closed-shell Au(i)⋯Cu(i) (with two bridging pyrazine ligands) or weak Cu(i)⋯Cu(i) interactions (with three bridging pyridazines) have been observed. None of these pyridazine derivatives is luminescent, which is probably related to the absence of aurophilic contacts. © 2017 The Royal Society of Chemistry.