Effective Photosensitization in Excited-State Equilibrium: Brilliant Luminescence of Tb Coordination Polymers Through Ancillary Ligand Modifications.

Invited for this month's cover are the collaborating groups of Yuichi Kitagawa, Yasuchika Hasegawa, Tetsuya Taketsugu, and co-workers at Hokkaido University. The cover picture shows a photosensitizer that has a long excited-state lifetime and provides strong emissions for Tb coordination polymers. The photosensitization ability can be considerably altered by changing the ancillary ligands in the Tb coordination polymers.

Effective Photosensitization in Excited-State Equilibrium: Brilliant Luminescence of Tb Coordination Polymers Through Ancillary Ligand Modifications.

Molecular photosensitizers provide efficient light-absorbing abilities for photo-functional materials. Herein, effective photosensitization in excited-state equilibrium is demonstrated using five Tb coordination polymers. The coordination polymers are composed of Tb ions (emission center), hexafluoroacetylacetonato (photosensitizer ligands), and phosphine oxide-based bridges (ancillary ligands).

Hybrid Eu Coordination Luminophore Standing on Two Legs on Silica Nanoparticles for Enhanced Luminescence.

In this study, we have demonstrated a two-legged, upright molecular design method for monochromatic and bright red luminescent Ln -silica nanomaterials. A novel Eu -silica hybrid nanoparticle was developed by using a doubly binding TPPO-Si(OEt) (TPPO: triphenyl phosphine oxide) linker. The TPPO-Si(OEt) was confirmed by H, P, Si NMR spectroscopy and single-crystal X-ray analysis.