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Volumn 47, Issue 12, 2008, Pages 2213-2216

Exploitation of the dual-emissive properties of cyclometalated iridium(III)-polypyridine complexes in the development of luminescent biological probes

Author keywords

Biological probes; Iridium; Luminescence; N ligands; Sensors

Indexed keywords

DYES; IRIDIUM; LUMINESCENCE; ORGANIC POLYMERS;

EID: 41049085367     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200705155     Document Type: Article
Times cited : (201)

References (17)
  • 11
    • 53549122536 scopus 로고    scopus 로고
    • The absence of an LE band for 1 in aqueous buffer could be due to the high polarity of the solvent and hydrogen-bonding interactions of the amine moieties with water.
    • The absence of an LE band for 1 in aqueous buffer could be due to the high polarity of the solvent and hydrogen-bonding interactions of the amine moieties with water.
  • 12
    • 53549087611 scopus 로고    scopus 로고
    • Protonation of the amine by TFA would make it impossible for the 3NLCT to occur. However, the highest occupied molecular orbital (HOMO) also contains some ppy character because of the contribution from the LLCT state. Thus, upon protonation of the electron-donating amine group, the HOMO becomes lower in energy, thereby resulting in a blue-shift of the LE emission band. In contrast, the ppy ligand of 1a does not possess the secondary amine, and thus the MLCT/LLCT emission is insensitive to the addition of TFA. Another reason for the TFA-induced blue-shift of the LE band of 1 is the increased polarity of the CH2Cl2 solution because of the presence of trifluoroacetate ions. Studies on the effects of ionic strength and temperature on the emission of 1 are included in the Supporting Information
    • 2 solution because of the presence of trifluoroacetate ions. Studies on the effects of ionic strength and temperature on the emission of 1 are included in the Supporting Information.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.