Luminescent gold and silver complexes with the monophosphane 1-(PPh 2)-2-Me-C2B10H10 and their conversion to gold micro- and superstructured materials
Autor
Crespo O.
Díaz C.
Odwyer C.
Gimeno M.C.
Laguna A.
Ospino I.
Valenzuela M.L.
Resumen
Gold and silver complexes containing the monophosphane 1-PPh 2-2-Me-l,2-C2B10H10 with different coordination numbers (2, 3) have been synthesized: [M(7,8-(PPh2) 2-C2B9H10)(1-PPh2-2-Me- C2B10H10)] (M = Ag, Au) and [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2] (n = 2, 12). Solid-state pyrolysis of [AuCl(1-PPh2-2-Me-C 2B10H10)] and [Au2(μ-1,12-C 2B10H10)(1-PPh2-2-Me-C 2B10H10)2] in air and of solutions of [AuCl(1-PPh2-2-Me-C2B10H10)] deposited on silicon and silica at 800 °C results in single-crystal Au, confirmed by diffraction and SEM-EDS. The morphology of the pyrolytic products depends on the thermolytic conditions, and different novel 3-D superstructures or microcrystals are possible. We also propose a mechanism for the thermal conversion of these precursors to structural crystalline and phase pure materials. The presence of the carborane monophosphane seems to originate quenching of the luminescence at room temperature in the complexes [Au 2(μ-1,n-C2B10H10)(1-PPh 2-2-Me-C2B10H10)2], in comparison with other [Au2(μ-1,n-C2B10H 10)L2] species (L = monophosphane). © 2014 American Chemical Society.
Colecciones
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Article
Circulating microRNAs in Huntington's disease: Emerging mediators in metabolic impairment (2020)
Díez-Planelles C.; Sánchez-Lozano P.; Crespo M.C.; Gil-Zamorano J.; Ribacoba R.; González N.; Suárez E.; Martínez-Descals A.; Martínez-Camblor P.; Álvarez V.; ... (Academic Press, 2016) -
Article
Solid-state synthesis of LnOCl/Ln2O3 (Ln = Eu, Nd) by using chitosan and PS-co-P4VP as polymeric supports (2020)
Diaz C.; Carrillo D.; de la Campa R.; Presa Soto A.; Valenzuela M.L. (Chinese Society of Rare Earths, 2018) -
Article
Hydroxytyrosol supplementation modulates the expression of miRNAs in rodents and in humans (2020)
Tomé-Carneiro J.; Crespo M.C.; Iglesias-Gutierrez E.; Martín R.; Gil-Zamorano J.; Tomas-Zapico C.; Burgos-Ramos E.; Correa C.; Gómez-Coronado D.; Lasunción M.A.; ... (Elsevier Inc., 2016)