2,3-diferrocenylpyrido[2,3-b]pyrazine | 1202226-80-9

• 英文名称: 2,3-diferrocenylpyrido[2,3-b]pyrazine
• CAS: 1202226-80-9
• 化学式: C₂₇H₂₁Fe₂N₃
• 分子量: 499.178
• InChiKey: CGTQXUAJPLSTON-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  2,3-二氨基吡啶 、 diferrocenylethane-1,2-dione 以 乙醇 为溶剂， 以80%的产率得到2,3-diferrocenylpyrido[2,3-b]pyrazine
  参考文献：
  名称：

  A Selective Redox and Chromogenic Probe for Hg(II) in Aqueous Environment Based on a Ferrocene−Azaquinoxaline Dyad

  摘要：

  A new chemosensor molecule 4 based on a ferrocene-azaquinoxaline dyad effectively recognizes Hg2+ in an aqueous environment as well as Pb2+ and Zn2+ metal cations in CH3CN solution through three different channels. Upon recognition, an anodic shift of the ferrocene/ferrocenium oxidation peaks and a progressive red shift (Delta lambda = 112-40 nm) of the low energy band, in their absorption spectra, is produced. These changes in the absorption spectra are accompanied by color changes from orange to deep green, for Hg2+, and to purple in the cases of Pb2+ and Zn2+. Remarkably, the redox and colorimetric responses toward Hg2+ are preserved in the presence of water (CH3CN/H2O, 3/7). The emission spectrum of 4 in CH3CN (lambda(exc) = 270 nm) undergoes important chelation enhancement of fluorescence (CHEF) in the presence of Hg2+ (CHEF = 204), Pb2+ (CHEF = 90), and Zn2+ (CHEF = 184) metal cations. Along with the spectroscopic data, the combined H-1 NMR data of the complexes and the theoretical calculation suggest the proposed bridging coordination modes

  DOI：

  10.1021/ic901234d