Surface-Bound Ruthenium Diimine Organometallic Complexes: Excited-State Properties

Surface-Bound Ruthenium Diimine Organometallic Complexes: Excited-State Properties

Ruthenium complexes of the general formula [Ru(CO)(H)(L2)(L'2)][PF6] (L2 = trans-2PPh3, L' = η2-4,4'-dicarboxybipyridine (1); L2 =trans-2Ph2PCH2CH2COOH, L'2 = bipyridine (2); L2 = Ph2PCHCHPPh2, L' = η2-5-amino-1,10-phenanthroline (3); L2 = trans-2PPh3, L'2 = η2-4-carboxaldehyde-4'-methylbipyridine (4)) have been shown to have longer emission lifetimes and higher quantum yields in solution compa...

Tuning the Excited-State Properties of Platinum(II) Diimine Dithiolate Complexes

Two series of Pt(diimine)(dithiolate) complexes have been prepared in order to investigate the effects of molecular design on the excited-state properties of this chromophore. The first series comprises Pt(dbbpy)(dithiolate) complexes where dbbpy ) 4,4′-di-tert-butyl-2,2′-bipyridine and the dithiolates are 1-(tert-butylcarboxy)-1cyanoethylene-2,2-dithiolate (tbcda), 1-diethylphosphonate-1-cyano...

Organometallic cis-Dichlorido Ruthenium(II) Ammine Complexes

Bifunctional neutral half-sandwich RuII complexes of the type [(η6-arene)Ru(NH3)Cl2] where arene is p-cym (1) or bip (2) were synthesised by the reaction of N,N-dimethylbenzylamine (dmba), NH4PF6 and the corresponding RuII arene dimer, and were fully characterised. X-ray crystallographic studies of [(η6-p-cym)Ru(NH3)Cl2]·{(dmba-H)(PF6)} (1a) and [(η6-bip)Ru(NH3)Cl2] (2) show extensive H-bond in...

Tuning of the Excited State Properties of Ruthenium(II)- Polypyridyl Complexes

Long-lived platinum(II) diimine complexes with broadband excited-state absorption: efficient nonlinear absorbing materials.

Platinum(II) diimine complexes with naphthalimide substituted fluorenylacetylide ligands are synthesized and characterized. The complexes exhibit long-lived (3)ILCT or (3)ILCT/(3)MLCT/(3)LLCT excited states (τ = ~20-30 μs) and broadband triplet transient absorption in the visible-NIR region. Nonlinear transmission experiments at 532 nm demonstrate that these complexes are efficient nonlinear ab...