title: Synthesis, characterization and luminescence studies of gold(I)-NHC amide complexes.
abstract: A flexible, efficient and straightforward methodology for the synthesis of N-heterocyclic carbene gold(I)-amide complexes is reported. Reaction of the versatile building block [Au(OH)(IPr)] (1) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) with a series of commercially available (hetero)aromatic amines leads to the synthesis of several [Au(NRR')(IPr)] complexes in good yields and with water as the sole byproduct. Interestingly, these complexes present luminescence properties. UV-vis and fluorescence measurements have allowed the identification of their excitation and emission wavelengths (λmax). These studies revealed that by selecting the appropriate amine ligand the emission can be easily tuned to achieve a variety of colors, from violet to green.
authors.affiliation: EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK.
authors.forename: Adrián
authors.initials: A
authors.lastname: Gómez-Suárez
authors.forename: David J
authors.initials: DJ
authors.lastname: Nelson
authors.forename: David G
authors.initials: DG
authors.lastname: Thompson
authors.forename: David B
authors.initials: DB
authors.lastname: Cordes
authors.forename: Duncan
authors.initials: D
authors.lastname: Graham
authors.forename: Alexandra M Z
authors.initials: AM
authors.lastname: Slawin
authors.forename: Steven P
authors.initials: SP
authors.lastname: Nolan
keywords: N-heterocyclic carbenes; fluorescence; gold; gold catalysis; synthesis