Organic linkers control the thermosensitivity of the emission intensities from Tb(iii) and Eu(iii) in a chameleon polymer.

ABSTRACT: Thermometers whose emission color gradually changes with temperature are called chameleon emitters. In this study, we discuss the mechanism of the thermosensitivity of the emission color of polymers that contain two lanthanides (Ln³⁺), e.g., [Tb_0.99Eu_0.01(hfa)₃(linker)] _n , where the Ln³⁺(hfa)₃ complexes (hfa: hexafluoro acetylacetonato) are connected by a phosphine oxide "linker" molecule. First, the difference in the thermosensitivities of the emissions from Tb³⁺ and Eu³⁺ are discussed. With increasing temperature, the green-emission intensity from Tb³⁺ decreases whereas the red-emission intensity from Eu³⁺ does not change. This was found to originate fro

SUBMITTER: Hatanaka M 

PROVIDER: S-EPMC5365065 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature