Fluorescent lanthadine complex
AssigneeJapan Science and Technology Agency
InventorsKuzuya Kikuchi, Shinya Iwasawa, Tetsuo Nagano
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Abstract
A luminescent lanthanide complex using a photo induced electron transfer as the luminescence controlling principle is presented. The complex comprises a substituted 2-quinolinol containing a sensor group and a complex group and lanthanide ion (Ln3+). This complex is allowed to be co-present in a liquid phase with a material to be measured, and the luminescence of said complex is measured.
Claims15
A luminescent lanthanide complex comprising a lanthanide and a substituted 2-quinolinol having a sensor group and a complex group on any two of the positions 3-8 in the 2-quinolinol represented by the formula (chemical formula 1)
- wherein the sensor group is represented by the formula
- —CnH2(n-m)—(C6H5-o)(—NR1R2)o
- wherein n is an integer of 1-5, m is an integer of 0-2 and smaller than n-1, o is 1 or 2, R1 represents H, alkyl, —COX (wherein X represents alkyl or peptide) or —CH2CH2(NYCH2CH2)pNY2 (wherein Y independently represents H, alkyl or a group having the formula below (chemical formula 2)
- and p represents an integer of 0-3, and R2 represents H or alkyl-), said lanthanide ion is complex bonded to said complex group, and the molar ratio of said substituted 2-quinolinol:
- said lanthanide is 1:0.9 to 1.1.
Dependencies are inferred from the claim text.