Guy Jennings

TL;DR: The XAFS measurements confirm that photoexcitation leads to the rapid removal of both axial ligands to produce a transient square-planar intermediate, NiTPP, with a lifetime of 28 nanoseconds, suggesting that the intermediate adopts the same structure as the ground state in a noncoordinating solvent before it recombines with two ligand to form the more stable octahedrally coordinated NiTPP-L2.

TL;DR: The results confirm the previously proposed "exciplex" structure of the MLCT state in Lewis basic solvents and indicate that the amount of charge transferred from copper to the dmp ligand upon photoexcitation is similar to the charge difference at the copper center between the ground-state copper(I) and copper(II) complexes.

TL;DR: It is argued that the ''dip feature'' in the spectrum below T-c arises not from bilayer splitting, but rather from many-body effects.

TL;DR: The gap is large in the vicinity of the {ital M}{ovr bar} is along the (Cu-O bond), and small along the {Gamma}-{ital X} and{ital Y} directions, however, the gap is not zero along these directions, but, within the authors' accuracy, becomes zero about 10{degree} on either side of the ({pi},{pi}) directions.

TL;DR: The data represent the first X-ray characterization of a molecular excited state in fluid solution on a nanosecond time scale and indicate that the absorptive and emissive states have distinct geometries.