Structural peculiarities and luminescence of europium dipivaloylmethanates with 2,2′-bipyridine derivatives. Polymorphism of [Eu(DPM)3Bpy]

Konstantin P. Zhuravlev,Vera I. Tsaryuk,Anna V. Vologzhanina,Pavel V. Dorovatovskii,Yan V. Zubavichus,Valentina A. Kudryashova,Zinaida S. Klemenkova

Inorganica Chimica Acta（2020）

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摘要

•Structures of six new lanthanide DPM compounds with Bpy derivatives.•Two polymorphs of [Eu(DPM)3Bpy].•The display of [Eu(DPM)3Bpy] polymorphism in the luminescence spectra.•Effect of distortions of Ln3+ coordination environment on spectroscopic characteristics.•Correlation between 5D0 lifetime and 5D0-7F2 intensity for Eu compounds.•The significant contribution of multiphonon relaxation to decay rates of Ln3+ states.

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关键词

Eu3+,Tb3+,Dipivaloylmethanate,2,2′-Bipyridine,Luminescence,X-ray crystal structure

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