User:Benjah-bmm27/degree/4/JPHC

=Electron Transfer in Coordination and Organometallic Chemistry, JPHC= =Photoinduced electron transfer=

Simple d1-d9 transition metal complexes

 * Colour arises from d-d transitions
 * Excited states very short lived
 * Decay by internal conversion, a sequence of complicated steps that convert electronic energy into thermal energy

The [Ru(bpy)3]2+ chromophore

 * Tris(bipyridine)ruthenium(II) chloride, [Ru(bpy)3]2+
 * Ru2+ and three neutral 2,2'-bipyridine (bpy) bidentate ligands
 * Absorbs a photon and undergoes metal-to-ligand charge transfer
 * Excitation from [RuII(bpy)3]2+ to [RuIII(bpy)2(bpy−)]2+

The water splitting reaction

 * Water splitting
 * Photocatalytic water splitting
 * Paraquat dication, AKA dimethylviologen, MV2+

=Mixed-valence compounds=
 * Inner sphere electron transfer – electron(s) transferred from one metal atom to another via a bridging ligand
 * Mixed valence compounds – contain the same element in two different oxidation states

Magnetite

 * Magnetite, Fe3O4 is a mixed valence iron oxide, containing both Fe2+ and Fe3+
 * Its electrical conductivity is a million times greater than isovalent Fe2O3, which contains only Fe3+

Prussian blue

 * Prussian blue,, also contains both Fe2+ and Fe3+
 * A three-dimensional coordination network of octahedral low-spin {FeII(CN)6} and high-spin {FeIII(NC)6} nodes
 * Its intense blue colour is due to electron transfer from Fe2+ to Fe3+

The Robin-Day Classification

 * Robin-Day Classification

The Creutz-Taube ion

 * Creutz-Taube complex