Design, Synthesis and Study of Re(I) and Ir(III) Complexes with CAAC Ligands
DescriptionThe unique coordination chemistry and electronic properties of cyclic alkyl amino carbene (CAAC) ligands have led to the discovery of a large number of previously inaccessible main group elements, organometallic compounds and even radicals. Many of these metal CAAC complexes have been demonstrated to show catalytic activities for various important chemical transformations. Moreover, It has also been demonstrated that the replacement of NHC or phosphine ligand in various catalysts with CAAC ligand could lead to improvement on the catalytic performance. In this context, CAAC ligands and their transition metal complexes have received tremendous attention. However, the development of these ligands have been limited by the only feasible synthetic method for the preparation of CAACs, which is incompatible with varieties of functional groups and reaction conditions.In this project, new synthetic strategies for metal complexes with CAAC or acyclic alkyl amino carbene (AAAC) ligands will be developed. Using these methods, new classes of luminescent Re(I) and Ir(III) complexes with unprecedented CAAC or AAAC ligands will be synthesized. These complexes should exhibit intriguing photophysical, photochemical and excited state properties. Their applications in developing emissive materials and photocatalytic systems will also be investigated. It is anticipated that the versatility of the current synthetic methodologies together with the rich coordination chemistry of isocyanide ligands would open up a new avenue for the development of transition metal complexes with many different types of CAAC or AAAC ligands.
|Effective start/end date||1/01/19 → …|