A molecular dual-center emitter for ratiometric optical thermometry.

ABSTRACT: Ratiometric optical thermometers have attracted significant interest due to their high accuracy, self-referencing capability and strong resistance to environmental fluctuations. However, most reported systems rely on doped materials, where random donor-acceptor distributions and batch-to-batch variability hinder reproducibility and restrict practical deployment for high-precision temperature sensing. Molecular ratiometric thermometers with precisely controlled donor-acceptor distances and fixed stoichiometry serve as promising candidates, yet remain largely unexplored. This work reports a dual-center emissive 3d-4f binuclear complex [ZnLSm(OAc)(NO₃)₂] (ZnSm), constructed using a Schiff base ligand (L). ZnSm exhibits two well-correlated emission bands at 485 nm (ZnL) a

SUBMITTER: Sun R 

PROVIDER: S-EPMC12862822 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature