Details

Autor(en) / Beteiligte

• Lee, Dianne S
• Singh, Ishwar
• Veinot, Alex J
• Aloisio, Mark D
• Lomax, Justin T
• Ragogna, Paul J
• Crudden, Cathleen M

Titel

Mesoionic carbene-based self-assembled monolayers on gold

Ist Teil von

• Chemical science (Cambridge), 2024-02, Vol.15 (7), p.248-2485

Ort / Verlag

England: Royal Society of Chemistry

Erscheinungsjahr

2024

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• N-Heterocyclic carbenes (NHC) have been widely studied as ligands for surface chemistry, and have shown advantages compared to existing ligands ( e.g. thiols). Herein, we introduce mesoionic carbenes (MICs) as a new type of surface ligand. MICs exhibit higher -donor ability compared to typical NHCs, yet they have received little attention in the area of surface chemistry. The synthesis of MICs derived from imidazo[1,2- a ]pyridine was established and fully characterized by spectroscopic methods. The self-assembly of these MICs on gold was analyzed by X-ray photoelectron spectroscopy (XPS). Additionally, XPS was used to compare bonding ability in MICs compared to the typical NHCs. These results show that MIC overlayers on gold are robust, resistant to replacement by NHCs, and may be superior to NHCs for applications that require even greater levels of robustness. N-heterocyclic carbenes (NHCs) have been widely studied as ligands for surface chemistry, and have shown advantages compared to existing ligands ( e.g. thiols). Herein, we introduce mesoionic carbenes (MICs) as a new type of surface ligand.