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The Molecular Structures and Properties of Novel Eu(III) Complexes with Asymmetric Bis-phosphine Oxides

Published online by Cambridge University Press:  26 February 2011

Hiroki Iwanaga ,
Fumihiko Aiga  and
Akio Amano
Hiroki Iwanaga
Affiliation:
[email protected], TOSHIBA Corporation, Corporate Research & Development Center, 1, Komukai-Toshiba-cho, Saiwaiku, Kawasaki, 212-8582, Japan
Fumihiko Aiga
Affiliation:
[email protected], TOSHIBA Corporation, Corporate Research & Development Center, 1, Komukai-Toshiba-cho, Saiwaiku, Kawasaki, 212-8582, Japan
Akio Amano
Affiliation:
[email protected], TOSHIBA Corporation, Corporate Research & Development Center, 1, Komukai-Toshiba-cho, Saiwaiku, Kawasaki, 212-8582, Japan
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Abstract

Several novel Eu(III) complexes with asymmetric bis-phosphine oxide- ligands were synthesized. The relation between molecular structures of bis-phosphine- oxide ligands and properties of Eu(III) complexes was investigated and some interesting results were obtained. Solubility of Eu(III) complexes in fluorinated medium and silicone oil were strongly dependent on the length of alkyl chain (n) binding two phosphine oxide- parts. Also, the thermal properties of Eu(III) complexes were correlated to the solubility. Eu(III) complex 6(n=3), which has phenyl and n-octyl groups as the substituents of a bis-phosphine oxide- ligand, was found to be highly soluble and have large fluorescence intensity.

Keywords

Eulanthanidedevices
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 965: Symposium S – Organic Electronics – Materials, Devices and Applications , 2006 , 0965-S03-12
Copyright
Copyright © Materials Research Society 2007

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References

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