open access

https://hdl.handle.net/2115/70700

Triboluminescence of Lanthanide Coordination Polymers with Face-to-Face Arranged Substituents

英語

triboluminescence

2017-06-12

Wiley-Blackwell

Angewandte chemie-international edition

56(25)

7171-7175

Luminescence upon the grinding of solid materials (triboluminescence, TL) has long been a puzzling phenomenon in natural science and has also attracted attention because of its broad application in optics. It has been generally considered that the TL spectra exhibit similar profiles as those of photoluminescence (PL), although they occur from distinct stimuli. Herein, we describe for the first time a large spectral difference between these two physical phenomena using lanthanide(III) coordination polymers with efficient TL and PL properties. They are composed of emission centers (Tb-III and Eu-III ions), antenna (hexafluoroacetylacetonate=hfa), and bridging ligands (2,5-bis(diphenylphosphoryl)furan=dpf). The emission color upon grinding (yellow TL) is clearly different from that upon UV irradiation (reddish-orange PL) in Tb-III/Eu-III-mixed coordination polymers [Tb,Eu(hfa)(3)(dpf)](n) (Tb/Eu=1). The results directly indicate the discrete excitation processes of PL and TL.

学術雑誌論文

Accepted Manuscript

This is the peer reviewed version of the following article: Angewandte chemie-international edition 56(25) 7171-7175 2017-06-12, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/anie.201703638/abstract. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

1433-7851