
Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 64(1), P. 192 - 201
Published: Dec. 19, 2024
Trivalent lanthanide ions have emerged as promising candidates for precise and remote temperature sensing. Among them, Pr3+-based luminescent thermometers remain underexplored, particularly those operating in the near-infrared (NIR) spectral region. This work presents synthesis thorough characterization of a novel coordination polymer, {[Pr2IIIPt3II(CN)12(4,4′-bpyO2)4(H2O)6]·4H2O}n (1), rare example Pr3+ thermometry. Coordination between ions, cyanido-bridged Pt2+ centers, 4,4′-bpyO2 ligands enables efficient energy transfer, producing luminescence visible regions. The polymer demonstrates distinct temperature-dependent over wide range (12–386 K), with relative thermal sensitivities ≅1%·K–1 minimum uncertainty 0.2 K.
Language: Английский