Easily synthesizable benzothiazole based designers palladium complexes for catalysis of Suzuki coupling: Controlling effect of aryl substituent of ligand on role and composition of insitu generated binary nanomaterial (PdS or Pd16S7)

The present report is based on straightforward synthesis of molecular palladium complexes of benzothiazole based bulky ligands. Catalytic potential of 1 [Pd(L1)(2)Cl-2] and 2 [Pd(L2)(2)Cl-2] has been screened for Suzuki coupling. Due to structural difference between 1 and 2 (anthracen-9-yl in 1, and pyren-1-yl in 2), they behave as designers pre-catalysts and show different catalytic behaviour and nature by dispensing the nanoparticles of different materials (PdS by 1 and Pd16S7 by 2). This is an unprecedented observation as the size of the aryl substituent controls the efficiency (efficiency: 1 > 2) through determining the composition and nature of insitu generated nanoparticles.

Automated summary

This study focuses on the straightforward synthesis of molecular palladium complexes of benzothiazole based bulky ligands, and evaluates their catalytic potential in Suzuki coupling reactions. The results show that the structural differences between the complexes lead to different catalytic behaviors, with the release of nanoparticles of different materials.