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US 10,745,614 B2Granted
Rare-earth complex polymer
AssigneeNational University Corporation Hokkaido University
InventorsTakayuki Nakanishi, Yuichi Hirai, Yasuchika Hasegawa, Yuichi Kitagawa, Koji Fushimi
Life of this patent
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Abstract
Disclosed is a rare-earth complex polymer including trivalent rare-earth ions and a phosphine oxide bidentate ligand represented by the formula (1). One phosphine oxide bidentate ligand is coordinated to the two rare-earth ions, and crosslinks the same.
Claims4
A rare-earth complex polymer comprising:
- trivalent rare-earth ions;
- and
- a phosphine oxide bidentate ligand represented by the formula (1),
- wherein one phosphine oxide bidentate ligand is coordinated to the two rare-earth ions and crosslinks the two rare-earth ions,
- in the formula (1), R1 and R2 each independently represent a hydrogen atom or a monovalent organic group, Ar1, Ar2, Ar3, and Ar4 each independently represent a monovalent aromatic group which may have a substituent group, R1 and R2 may bond to each other, and two groups selected from Ar1, Ar2, Ar3, and Ar4 may bond to each other.
2 more elements
Dependencies are inferred from the claim text.