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Volumn 43, Issue 17, 2004, Pages 5183-5185

Highly selective chromogenic signaling of Hg2+ in aqueous media at nanomolar levels employing a squaraine-based reporter

Author keywords

[No Author keywords available]

Indexed keywords

CHROMOGENIC SUBSTRATE; MERCURY; SQUARAINE; SQUARIC ACID DERIVATIVE; UNCLASSIFIED DRUG;

EID: 4043169759     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic049422q     Document Type: Article
Times cited : (151)

References (59)
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    • note
    • 3) of both compounds shows two characteristic doublets in the aromatic zone at 8.39 and 6.74 ppm (1) and 8.37 and 6.74 ppm (2). FAB high-resolution mass spectroscopy: (1) M + 1 733.2474, calculated 733.2474; (2) M + 1 489.3460, calculated 489.3481. Both 1 and 2 complexes are stable in the solid state but slowly decompose in water at basic pH.
  • 54
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    • note
    • -1) for both bands, stressing the interpretation that squaraines can be regarded as polymethines rather than as donor-acceptor-donor substituted dyes, showing a typical intramolecular charge transfer.
  • 56
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    • note
    • 2+ changed back to blue upon addition of an excess of EDTA.
  • 58
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    • note
    • 2+ also leads to their disintegration with subsequent binding and decoloration.
  • 59
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    • note
    • 2+ would require the use of calibration procedures.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.