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Volumn 4, Issue 5, 1998, Pages 772-780

Sensitized near-infrared emission from Nd3+ and Er3+ complexes of fluorescein-bearing calix[4]arene cages

Author keywords

Calixarenes; Fluorescence; Lanthanides; Luminescence; Sensitizers

Indexed keywords


EID: 0000288128     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3765(19980515)4:5<772::AID-CHEM772>3.0.CO;2-3     Document Type: Article
Times cited : (100)

References (27)
  • 18
    • 2642708466 scopus 로고    scopus 로고
    • The corresponding compound from o-phenylenediamine has been made, but the reactivity of the aromatic amino group was too low in the subsequent step
    • The corresponding compound from o-phenylenediamine has been made, but the reactivity of the aromatic amino group was too low in the subsequent step.
  • 20
    • 2642607108 scopus 로고    scopus 로고
    • note
    • The triesters containing the fluorescein derivatives eosin (tetrabromofluorescein) or erythrosine (tetraiodofluorescein) instead of fluorescein were also synthesized and characterized. The quantum yields of triplet states of these sensitizers are significantly higher (0.33 and 0.83, respectively) than that of fluorescein (0.02). Moreover, the energy of the triplet states is lower, rendering more red-shifted excitation possible. However, hydrolysis of these compounds to the triacids was not successful until now.
  • 22
    • 2642638868 scopus 로고    scopus 로고
    • 4]methanol solutions is not known, owing to the low solubility of the complexes in organic solvents
    • 4]methanol solutions is not known, owing to the low solubility of the complexes in organic solvents.
  • 23
    • 2642713427 scopus 로고    scopus 로고
    • note
    • 4]methanol solutions were 287 and 500 nm. However, DMSO strongly absorbs light of 287 nm, and therefore 310 nm excitation was used for these solutions, whereas 515 nm excitation was used in the visible part of the electromagnetic spectrum because of the red-shifted excitation band.
  • 25
    • 2642646334 scopus 로고    scopus 로고
    • 3+ has an absorption band at 500 nm, reabsorption may occur
    • 3+ has an absorption band at 500 nm, reabsorption may occur.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.