515159-10-1Relevant academic research and scientific papers
The first anionic arenediethynylgold(I) complexes
Vicente, José,Chicote, María Teresa,Abrisqueta, María Dolores,Alvarez-Falcón, Miguel M.
, p. 40 - 45 (2002)
We report synthetic methods for the preparation of mono-, di-, tri- and polyanionic alkynylgold(I) complexes, derived from diethynylarenes. The reaction between PPN[Au(acac)2] and 1,3-diethynylbenzene [HC≡C(mphen)C≡CH] (1:1 M ratio) afforded the polymeric complex (PPN)n[Au {C≡C(mphen)C≡C}]n (1) while the monomeric complexes (PPN)[Au{C≡C(Ar)C≡CH}2] [Ar = mphen (2), mes (3)] resulted when the same dialkyne or 1,3-diethynylmesitylene [HC≡C(mes)C≡CH] were used in a 1:2 M ratio. Complexes PPN[XAu≡C(Ar)C≡CH] [Ar = mphen, X = Cl (4), Ar = mes, X = Cl (5), SCN (6)] were obtained from the metathesis reactions between complexes 2 or 3 and the appropriate PPN[AuX2] salts. The C≡CH groups in complexes 2 or 4 are acidic enough as to react with [Au(acac)PPh3] (1:2) or with PPN[Au(acac)2] (1:1) to give complexes PPN[Au{C≡C(mphen)C≡CAuPPh3}2] (7) or (PPN)3[Au{C≡C(mphen)C≡CAuCl}2] (8), respectively. Complexes (PPN)2[XAuC≡C(Ar)C≡CAuX)] [Ar = mphen, X = Cl (9); Ar = mes, X = Cl (10), SCN (11)] have been prepared by reacting [Ph3PAuC=C(mphen)C=CAuPPh3] with PPN[AuCl2] (1:2) (9) or [AuC≡C(mes)C≡CAu]n with the appropriate PPNX (1:2) salt (10, 11).
