Transition metal complexes with asymmetric tridentate peripheral organosilyl ligands: their impact in homogeneous catalysis

Silyl-based tridentate ligands [SiL 2 ] n− (n = 1, 2; L = PR 3 , NR 2 or other groups) have emerged over the last decades as a versatile class of ligands for transition metal (TM) chemistry. TM–(κ 3 - Si , L 2 ) complexes display unique structural features and reactivity that arise directly from the incorporation of a strongly σ-donating silyl group into the pincer ligand framework. While most studies have focused on systems where silicon occupies the central position of the tridentate scaffold,