Premium
The Chameleonic Nature of Platinum(II) Imidazopyridine Complexes
Author(s) -
Pinter Piermaria,
Pittkowski Rebecca,
Soellner Johannes,
Strassner Thomas
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201703908
Subject(s) - phosphorescence , platinum , steric effects , chemistry , photochemistry , imidazopyridine , excitation , monomer , aggregation induced emission , fluorescence , stereochemistry , polymer , organic chemistry , physics , quantum mechanics , electrical engineering , engineering , catalysis
The synthesis and characterization of cyclometalated C^C* platinum(II) complexes with unique photophysical properties, aggregation induced enhancement of the quantum yields with a simultaneous decrease of phosphorescence lifetimes, is reported. Additionally, a change of emission color is induced by variation of the excitation wavelength. The aggregation behavior of these complexes is controlled by the steric demand of the substituents. The photophysical properties of these complexes are investigated through emission‐excitation matrix analysis (EEM). The monomeric complexes are excellent room temperature phosphorescent blue emitters with emission maxima below 470 nm and quantum yields of up to 93 %.