Bulky and Stable Copper(I)-Phenanthroline Complex: Impact of Steric Strain and Symmetry on the Excited-State Properties.

ABSTRACT: The steric strain around copper(I) in typical [Cu(NN_R)₂]⁺ complexes, where NN_R is a diimine ligand substituted in α-positions of the nitrogen atoms by R, is known to strongly impact the excited-state properties. Generally speaking, the larger the R, the longer the emission lifetime and the higher the quantum yield. However, the stability of the coordination scaffold can be at stake if the steric strain imposed by R is too large. In this work, we explore a way of fine-tuning the steric strain around Cu(I) to reach a balance between high emission quantum yield and stability in a highly bulky copper(I) complex. Taking stable [Cu(dipp)₂]⁺ and unstable [Cu(dtbp)₂]⁺ (where dipp and dtbp are, respectively, 2,9

SUBMITTER: Gimeno L 

PROVIDER: S-EPMC9116384 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature