Synthesis, characterization and photoluminescent properties of platinum complexes with novel bis(imidazoline) pincer ligands

Chiral C2-symmetric bis(imidazoline) pincer ligands 2a-d have been synthesized for the first time. Direct cycloplatination of these ligands with K2PtCl4 in dry acetic acid afforded the corresponding cycloplatinated pincer complexes 3a-d. The X-ray single-crystal structure of platinum complex 3d and the preliminary studies on the photoluminescent properties of 3 are reported.