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US 12,606,738 B2Granted
Rare earth complex
AssigneeNational University Corporation Hokkaido University
InventorsYuichi Kitagawa, Ayu Naito, Yasuchika Hasegawa, Koji Fushimi
Life of this patent
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Abstract
Disclosed is a rare earth complex including: one or a plurality of rare earth ions; and a ligand forming a coordinate bond with the rare earth ions. At least a part of the rare earth ions are at least one kind selected from the group consisting of lutetium(III) ions, yttrium(III) ions, and gadolinium(III) ions. The ligand includes a residue obtained by removing one or more hydrogen atoms from a fluorescent condensed polycyclic aromatic compound.
Claims4
A rare earth complex comprising:
- one or a plurality of rare earth ions;
- and
- a ligand forming a coordinate bond with the rare earth ions, wherein
- at least a part of the rare earth ions are at least one selected from the group consisting of lutetium (III) ions, yttrium (III) ions, and gadolinium (III) ions, and
- the ligand comprises a residue obtained by removing one or more hydrogen atoms from a fluorescent condensed polycyclic aromatic compound,
- wherein the condensed polycyclic aromatic compound is a compound represented by the following formula (1):
- R1 represents a hydrogen atom, a halogen atom, a cyano group, an amino group that may have a substituent, or an aryl group that may have a substituent, and a plurality of R1s in the same molecule may be the same as or different from each other.
4 more elements
A rare earth complex comprising:
- one or a plurality of rare earth ions;
- and
- a ligand forming a coordinate bond with the rare earth ions, wherein
- at least a part of the rare earth ions are at least one selected from the group consisting of lutetium (III) ions, yttrium (III) ions, and gadolinium (III) ions, and
- the ligand comprises a residue obtained by removing one or more hydrogen atoms from a fluorescent condensed polycyclic aromatic compound,
- wherein the condensed polycyclic aromatic compound is a compound represented by the following formula (1), (2) or (1-3):
- R1 represents a hydrogen atom, a halogen atom, a cyano group, an amino group that may have a substituent, or an aryl group that may have a substituent, and a plurality of R1s in the same molecule may be the same as or different from each other, and
- wherein the rare earth complex has a plurality of the rare earth ions and a plurality of the ligands that are bidentate and comprise the residue obtained by removing one or more hydrogen atoms from the condensed polycyclic aromatic compound,
- a repeating structure is formed by alternately arranging the rare earth ions and the bidentate ligands, and
- the ligands that are bidentate include a bidentate phosphine oxide ligand represented by the following formula (21) or (22):
- R1 represents a hydrogen atom, a halogen atom, a cyano group, an amino group that may have a substituent, or an aryl group that may have a substituent, and a plurality of R1s in the same molecule may be the same as or different from each other,
- R10 represents an aryl group which may have a substituent.
9 more elements
Dependencies are inferred from the claim text.