Triplet Emitting C^N^C Cyclometalated Dibenzo[c,h]Acridine Pt(II) Complexes.

ABSTRACT: In a series of Pt(II) complexes [Pt(dba)(L)] containing the very rigid, dianionic, bis-cyclometalating, tridentate C^N^C^2- heterocyclic ligand dba^2- (H₂dba = dibenzo[c,h]acridine), the coligand (ancillary ligand) L = dmso, PPh₃, CNtBu and Me₂Imd (N,N'-dimethylimidazolydene) was varied in order to improve its luminescence properties. Beginning with the previously reported dmso complex, we synthesized the PPh₃, CNtBu and Me₂Imd derivatives and characterized them by elemental analysis, ¹H (and ³¹P) NMR spectroscopy and MS. Cyclic voltammetry showed partially reversible reduction waves ranging between -1.89 and -2.10 V and increasing along the series Me₂

SUBMITTER: Friedel J 

PROVIDER: S-EPMC9697690 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature