Circularly Polarized Luminescence from Pure and Eu-Doped Trigonal TbPO·HO Nanocrystals.

In this contribution, we describe the preparation, by means of a precipitation reaction from aqueous solution at 40 °C, and the structural characterization of nanocrystalline powders of trigonal TbEuPO·HO (with = 0, 0.005, 0.01, 0.

Merging C-C σ-bond activation of cyclobutanones with CO fixation Ni-catalysis.

A carboxylative Ni-catalyzed tandem C-C σ-bond activation of cyclobutanones followed by CO-electrophilic trapping is documented as a direct route to synthetically valuable 3-indanone-1-acetic acids. The protocol shows an adequate functional group tolerance and useful chemical outcomes (yield up to 76%) when AlCl is adopted as an additive. Manipulations of the targeted cyclic scaffolds and a mechanistic proposal based on experimental evidence complete the investigation.