Thio-iso-phthalamide pincer ligand-driven oxidative addition of a C–Br bond to gold( i ): synthesis and studies of SCS–gold( iii ) pincer complexes
Year: 2025
Type: article
Abstract: Au(I)Cl salt, leading to the isolation of stable SCS·Au(III)X (X = Br and Cl) complexes. The subsequent displacement of bromide with silver triflate, followed by the addition of phosphine/phosphite ligands, afforded a series of neutral, highly stable organogold(III) complexes. The thioamide pincer ligand acts as a trianionic species due to iminothiolate formation. The isolated complexes were thoroughly characterized by NMR, mass spectrometry, IR spectroscopy, and single-crystal X-ray diffraction techniques. The redox potential of the complexes was measured by cyclic voltammetry, revealing that the reduction of Au(III) to Au(I) to Au(0) is an irreversible redox process. The pathway of gold(III) complex formation was investigated using DFT analysis, which suggested that the bi-chelation of the thioamide groups facilitated the oxidative addition of C-Br bonds to the Au(I) centre.
Source: Dalton Transactions
DOI: 10.1039/d5dt00916b
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Funders: Arthritis National Research Foundation, Department of Science and Technology, Ministry of Science and Technology, India, Council of Scientific and Industrial Research, India, Indian Institute of Technology Bombay, Indian Institute of Science Education and Research Bhopal, Indian Institute of Science Education and Research Mohali, Science and Engineering Research Board
OpenAlex ID: W4412764941