| 1365159-77-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• CAS: 1365159-77-8
• 化学式: C₄₀H₂₆N₈O₂Ru
• 分子量: 751.769
• InChiKey: KIDQYDIPMBJPIK-IDHVVMMVSA-N

反应信息

• 作为产物：
  描述：

  bis(1,10-phenanthroline)(4,7-diformyl-1,10-phenanthroline)ruthenium(II) dihexafluorophosphate * 0.77(chloroform) 、 氰化四丁基铵 以 氘代乙腈 为溶剂， 生成
  参考文献：
  名称：

  Rapid and Highly Sensitive Dual-Channel Detection of Cyanide by Bis-heteroleptic Ruthenium(II) Complexes

  摘要：

  Two new ruthenium complexes [Ru(bipy)(2)(PDA)](2+) (1) and [Ru (phen)(2)(PDA)](2+) (2) (PDA = 1,10-phenanthroline-4,7-dicarboxaldehyde) have been synthesized to detect cyanide based on the well-known formation of cyanohydrins. Both 1[PF6](2) and 2[PF6](2) were fully characterized by various spectroscopic techniques and their solid state structures determined by single-crystal X-ray diffraction. Their anion binding properties in pure and aqueous acetonitrile were thoroughly examined using two different channels, i.e., UV-vis absorption and photoluminescence (PL). After addition of only 2 equiv of CN-, the PL intensity of 1[PF6](2) and 2[PF6](2) was enhanced similar to 55-fold within 15 s along with a diagnostic blue shift of the emission by more than 100 nm. PL titrations of 1[PF6](2) and 2[PF6](2) with CN- in CH3CN furnished the very high overall cyanohydrin formation constants log beta(-)([CN)(]) = 15.36 +/- 0.44 (beta(-)([CN)(]) = 23 x 10(15) M-2) and log beta(-)([CN)(]) = 16.37 +/- 0.53 (beta(-)([CN)(]) = 2.3 x 10(16) M-2), respectively. For both probes, the second constant, K-2, is about 57-84 times less than K-1, suggesting that the cyanohydrin reaction is stepwise. The stepwise mechanism is further supported by results of a H-1 NMR titration of 2[PF6](2) with CN-. The high selectivity of 2[PF6](2) for CN- was established by PL in the presence of other competing anions. Furthermore, the color change from orange-red to yellow and the appearance of a orange luminescence, which can be observed by the naked eye, provides a simple real-time method for cyanide detection. Finally, theoretical calculations were carried out to elucidate the details of the electronic structure and transitions involved in the ruthenium probes and their cyanide adducts.

  DOI：

  10.1021/ic2022853