Singlets, triplets, and exciplexes: complex, temperature-dependent emissions from (2,9-dimethyl-1,10-phenanthroline)bis(triphenylphosphine)copper(1+) and (1,10-phenanthroline)(triphenylphosphine)copper(1+)

Ultrafast Structural Rearrangements in the MLCT Excited State for Copper(I) bis-Phenanthrolines in Solution

“…In particular, cuprous diimine complexes have been considered as potential substitutes for ruthenium (II) and osmium(II) systems. 18 McMillin and coworkers 3,[19][20][21][22][23][24] performed pioneering work for elucidating the unique photophysics and photochemistry of [Cu I (NN) 2 ] + complexes and developed a fundamental picture of the photophysics occurring on the nanosecond timescale. 6 Their experimental observations led to remarkable insights into the properties of these systems in their excited states.…”

A Two-coordinate Copper(I) Complex Constructed from Cyanuric Acid and 4,4′-Bipyridyl: Synthesis, Structure and Photoluminescence

“…The shoulder peak may arise from the H 2 L -intraligand transition, but the 558 nm emission should be mainly attributed to metal-ligand charge transfer transition from the Cu(I) metal center to the ligand molecules (MLCT) since the ligands (both bipy and H 3 L) themselves show no emission at this wavelength. 14,27,28 The appearance of the 564 nm emission may be due to the mixing of the charge transfer transition and the intraligand transition of the H 2 L -molecules. Energy transfer between the ligands and the Cu(I) metal center for the photoluminescence was demonstrated by the appearance of the charge transfer emission when the 350 and 388 nm excitations, which correspond to excitations of the bipy and the H 3 L ligands, were applied to the compound.…”

Two Neutral Copper(I) Complexes Bearing 2‐(4‐Nitrophenyl) Imidazole[4,5‐f]‐1,10‐Phenanthroline: Synthesis, Crystal Structure, and Luminescence Properties

“…[9][10][11] For example, copper(I) complexes containing 2,9-dialkyl-1,10-phen and phosphine mixed ligands have been widely used to construct photo-and electroactive devices. [12][13][14] Such 1,10-phen-type ligands are mostly functionalized at 2,9-positions, and the chemical functionalization at other ring positions is still under development. Furthermore, the ligands are primarily used to prepare ionic complexes, which may make the vapor deposition difficult during the device fabrication of organic light-emitting diodes.…”