Probing the donor strength of yldiide ligands: synthesis, structure and reactivity of rhodium complexes with a PC_ylideN pincer ligand.

ABSTRACT: Control of the metal ligand interaction by changes in the ligand protonation state is vital to many catalytic transformations based on metal-ligand cooperativity. Herein, we report on the coordination chemistry of a new PC_y(H)N pincer ligand with a central ylide as donor site, which through deprotonation to the corresponding yldiide changes from a neutral L₃-type ligand to an anionic L₂X-type PC_YN ligand. The isolation of a series of rhodium complexes showed that the strong donor ability of the neutral ylide PC_Y(H)N is further increased upon deprotonation, as evidenced by one of the lowest reported CO stretching frequencies in complex [(PC_YN)Rh(CO)] (2) compared to other known rhodium carbonyl complexes. DFT calculations rev

SUBMITTER: Lapointe S 

PROVIDER: S-EPMC10074424 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature