A long but adventurous journal to the synthesis of tetradentate bis-cyclometalated C^ C∗ N^ N-coordinated platinum complexes is described, where C^ C and N^ N denote a five- membered chelation and C∗ N denotes a six-membered chelation. Initial ligand designs resulted in the selective cycloplatination to form a tridentate coordination complex. The structures of the tridentate coordination complexes were confirmed by the X-ray ...
