Time-Resolved Spectroscopy and Electronic Structure of Mono-and Dinuclear Pyridyl-Triazole/DPEPhos-Based Cu(I) Complexes.

ABSTRACT: Chemical and spectroscopic characterization of the mononuclear photosensitizers [(DPEPhos)Cu(I)(MPyrT)]^0/+ (CuL, CuLH) and their dinuclear analogues (Cu₂ L', Cu₂ L'H₂ ), backed by (TD)DFT and high-level GW-Bethe-Salpeter equation calculations, exemplifies the complex influence of charge, nuclearity and structural flexibility on UV-induced photophysical pathways. Ultrafast transient absorption and step-scan FTIR spectroscopy reveal flattening distortion in the triplet state of CuLH as controlled by charge, which also appears to have a large impact on the symmetry of the long-lived triplet states in Cu₂ L' and Cu₂ L'H₂ . Time-resolved luminescence spectroscopy (solid state), supported by transient photodissociation

SUBMITTER: Grupe M 

PROVIDER: S-EPMC8597052 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature