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Volumn 49, Issue 23, 2010, Pages 10847-10857

Exploring the emissive properties of New Azacrown compounds bearing aryl, furyl, or thienyl moieties: A special case of chelation enhancement of fluorescence upon interaction with Ca2+, Cu2+, or Ni 2+

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM; CHELATING AGENT; COPPER; CROWN COMPOUND; FLUORESCENT DYE; IMIDAZOLE DERIVATIVE; METAL; NICKEL;

EID: 78650246295     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic101095y     Document Type: Article
Times cited : (34)

References (108)
  • 76
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    • version 6.01; Bruker Analytical X-ray Systems Inc.: Madison, WI.
    • SAINT: Data Integration software package, version 6.01; Bruker Analytical X-ray Systems Inc.: Madison, WI, 1997.
    • (1997) SAINT: Data Integration Software Package
  • 92
    • 78650254172 scopus 로고    scopus 로고
    • NMR titration experiments were carried out in deuterated DMSO, due to the low solubility of 1 in ethanol at NMR concentration, and showed two protonation steps: a first step involving the azacrown nitrogen and a second step involving the imidazole nitrogen. After protonation, both set of signals were broadned and difficult to differentiate. In this case, the signals attributed to the protonated azacrown nitrogen at 3.9-3.4 ppm were stabilized by increasing addition of protons before the signals attributed to the protonated imidazole nitrogen.
    • NMR titration experiments were carried out in deuterated DMSO, due to the low solubility of 1 in ethanol at NMR concentration, and showed two protonation steps: a first step involving the azacrown nitrogen and a second step involving the imidazole nitrogen. After protonation, both set of signals were broadned and difficult to differentiate. In this case, the signals attributed to the protonated azacrown nitrogen at 3.9-3.4 ppm were stabilized by increasing addition of protons before the signals attributed to the protonated imidazole nitrogen.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.