Luminescent Homo- and Heteropolynuclear Gold Complexes Stabilized by a Unique Acetylide Fragment

• DOI: 10.1021/om200397t
• Publication Date: 2011-07-05T17:07:44Z
• Authors: M. Carmen Blanco; Jéssica Cámara; M. Concepción Gimeno; Peter G. Jones; Antonio Laguna; José M. López-de-...; M. Elena Olmos; M. Dolores Villac...
• Keywords: 01 natural sciences; 0104 chemical sciences

In this paper we describe the reactivity of the gold acetylide derivatives [Au(C≡CR)(PPh 3)] (R = Ph, 2-py). Reactions of these complexes with fragments of the type [M(PPh 3) 2] + (M = Au, Ag, Cu) afford a series of novel discrete molecules stabilized not only by interactions with the triple bond but also by the formation of strong metal-gold interactions. The crystal structures of the gold-gold and gold-silver species confirm their similar behavior, while X-ray diffraction establishes a different arrangement for the copper complex with pyridine acetylide as a consequence of the coordination of this metal center to the nitrogen atom of pyridine and to the carbons of the alkyne. The luminescent properties of the complexes were also studied. © 2011 American Chemical Society.<br/>Peer Reviewed<br/>We thank the Ministerio de Ciencia e Innovación (CTQ2010-20500) and the Departamento de Ciencia, Tecnología y Universidad del Gobierno de Aragón - Fondo Social Europeo (E77) for financial support.<br/>