1522372-22-0Relevant academic research and scientific papers
Simple Synthetic Routes to Carbene-M-Amido (M=Cu, Ag, Au) Complexes for Luminescence and Photocatalysis Applications
Tzouras, Nikolaos V.,Martynova, Ekaterina A.,Ma, Xinyuan,Scattolin, Thomas,Hupp, Benjamin,Busen, Hendrik,Saab, Marina,Zhang, Ziyun,Falivene, Laura,Pisanò, Gianmarco,Van Hecke, Kristof,Cavallo, Luigi,Cazin, Catherine S. J.,Steffen, Andreas,Nolan, Steven P.
, p. 11904 - 11911 (2021)
The development of novel and operationally simple synthetic routes to carbene-metal-amido (CMA) complexes of copper, silver and gold relevant for photonic applications are reported. A mild base and sustainable solvents allow all reactions to be conducted in air and at room temperature, leading to high yields of the targeted compounds even on multigram scales. The effect of various mild bases on the N?H metallation was studied in silico and experimentally, while a mechanochemical, solvent-free synthetic approach was also developed. Our photophysical studies on [M(NHC)(Cbz)] (Cbz=carbazolyl) indicate that the occurrence of fluorescent or phosphorescent states is determined primarily by the metal, providing control over the excited state properties. Consequently, we demonstrate the potential of the new CMAs beyond luminescence applications by employing a selected CMA as a photocatalyst. The exemplified synthetic ease is expected to accelerate the applications of CMAs in photocatalysis and materials chemistry.
Synthesis, characterization and luminescence studies of gold(I)-NHC amide complexes
Gomez-Suarez, Adrian,Nelson, David J.,Thompson, David G.,Cordes, David B.,Graham, Duncan,Slawin, Alexandra M. Z.,Nolan, Steven P.
, p. 2216 - 2223 (2013/11/19)
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.
