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.