Luminescence that lasts from Pt(trpy)Cl+ derivatives (trpy=2,2′;6′,2″-terpyridine)

Photofunctional Platinum Complexes Featuring N‐heterocyclic Carbene‐Based Pincer Ligands

“…Upon grinding, these emission bands showed a large red shift to 585 nm. The new mechanochromic peak could arise from a metal-metal-toligand charge-transfer (MMLCT) state, [36] in view of Pt···Pt interaction. The blue emission of [Pt( Me CCC Me )(C CPh)] was later regained by exposing the ground sample to vapors of dichloromethane, acetone, or methanol (Figure 11 a).…”

Time-resolved and two-photon emission imaging microscopy of live cells with inert platinum complexes

“…The quantum yields of emission (⌽ lum ) are 0.6-0.7 in degassed dichloromethane solution, remarkably high for platinum chromophores, in which the emissive excited state is frequently quenched by nonradiative decay via a low-lying, strongly antibonding d-d excited state (22,23). The high efficiency of luminescence can be rationalized in terms of the very strong ligand field associated with the rigid terdentate cyclometalating ligand, which raises the energy of d-d excited states, thereby diminishing or even eliminating this pathway of nonradiative decay.…”

Synthesis, characterization and crystal structure of cis-bis[4-fluoro-N-(diethylcarbamothioyl)benzamido-κ2O,S]platinum(II)

“…Thioureas are selective ligands for the platinum group metals such as rhodium, platinum and palladium [32]. Platinum-thiourea complexes have attracted interest because of their luminescence properties [33] that find applications in optoelectronic devices [34][35][36], luminescent probes for biomolecules [37,38] and chemical sensors [38][39][40][41].…”