title: A coumarin based gold(i)-alkynyl complex: a new class of supramolecular hydrogelators.
abstract: A phosphine-gold(i)-alkynyl-coumarin complex, [Au{7-(prop-2-ine-1-yloxy)-1-benzopyran-2-one}(DAPTA)] (), was synthesized and the formation of long luminescent fibers in solution was characterized via fluorescence microscopy and dynamic light scattering. The fibers presented strong blue and green luminescence, suggesting that the gold(i) in the complex increased intersystem crossing due to the heavy atom effect, resulting in a significant increase in triplet emission. The X-ray structure of the fibers indicates that both aurophilic, π-π interactions and hydrogen bonding contribute to their formation in aqueous solvents.
authors.affiliation: REQUIMTE, Dep. de Química, Universidade Nova de Lisboa, Monte de Caparica, Portugal. lima@fct.unl.pt.
authors.forename: Artur J
authors.initials: AJ
authors.lastname: Moro
authors.forename: Bertrand
authors.initials: B
authors.lastname: Rome
authors.forename: Elisabet
authors.initials: E
authors.lastname: Aguiló
authors.forename: Julià
authors.initials: J
authors.lastname: Arcau
authors.forename: Rakesh
authors.initials: R
authors.lastname: Puttreddy
authors.forename: Kari
authors.initials: K
authors.lastname: Rissanen
authors.forename: João Carlos
authors.initials: JC
authors.lastname: Lima
authors.forename: Laura
authors.initials: L
authors.lastname: Rodríguez