open access

https://hdl.handle.net/2115/67126

Luminescent Europium(III) Coordination Zippers Linked with Thiophene-Based Bridges

英語

thermal stability

2016-09-19

Wiley-Blackwell

Angewandte chemie-international edition

55(39)

12059-12062

Novel Eu-III coordination polymers [Eu(hfa)(3)(dpt)](n)(dpt: 2,5-bis(diphenylphosphoryl)thiophene) and [Eu(hfa)(3)(dpedot)](n) (dpedot: 2,5-bis(diphenylphosphoryl)ethylenedioxythiophene) with hydrogen-bonded zipper structures are reported. The coordination polymers are composed of Eu-III ions, hexafluoroacetylacetonato ligands, and thiophene-based phosphine oxide bridges. The zig-zag orientation of single polymer chains induced the formation of densely packed coordination structures with multiple intermolecular interactions, resulting in thermal stability above 300 degrees C. They exhibit a high intrinsic emission quantum yield (ca. 80%) due to their asymmetrical and low-vibrational coordination structures around Eu-III ions. Furthermore, the characteristic alternative orientation of substituents also contributes to the dramatically high ligand-to-metal energy transfer efficiencies of up to 80% in the solid state.

学術雑誌論文

Accepted Manuscript

Angewandte chemie-international edition Volume 55, Issue 39,September 19, 2016,Pages 12059–12062 , which has been published in final form at http://doi.org/10.1002/anie.201606371. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html).

1433-7851