Synthesis of Pd(II) complexes of unsymmetrical, hybrid selenoether and telluroether ligands: Isolation of tellura-palladacycles by fine tuning of intramolecular chalcogen bonding in hybrid telluroether ligands

The synthesis of a series of palladium(II) complexes of unsymmetrical, hybrid selenoether and telluroether ligands is reported. While the reaction of Pd(II) precursors with symmetrical telluroether ligands containing two coordinating groups results in cleavage of Te–C bond, no such labilisation is observed using unsymmetrical ligands containing one coordinating group.