Julolidine aldehyde | 188676-52-0

• 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
• 英文名称: Julolidine aldehyde
• 英文别名: (2E,4E)-5-(1-azatricyclo[7.3.1.05,13]trideca-5,7,9(13)-trien-7-yl)penta-2,4-dienal
• CAS: 188676-52-0
• 化学式: C₁₇H₁₉NO
• 分子量: 253.344
• InChiKey: CXPCESGIZARJOR-DHWRHDBVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  Julolidine aldehyde 在 盐酸 、 18-冠醚-6 、 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 21.0h， 生成 (2E,4E,6E)-7-(2,3,6,7-Tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl)-hepta-2,4,6-trienal
  参考文献：
  名称：

  Large Quadratic Hyperpolarizabilities with Donor–Acceptor Polyenes Exhibiting Optimum Bond Length Alternation: Correlation Between Structure and Hyperpolarizability

  摘要：

  AbstractDonor–acceptor polyenes of various lengths, and that combine aromatic electron‐donating moieties with powerful heterocyclic electron‐withdrawing terminal groups, have been synthesized and characterized as efficient nonlinear optical (NLO) chromophores. Their linear and nonlinear optical properties have been investigated, and variations in these properties have been related to ground‐state polarization (dipole μ) and structure. In particular, unprecedented quadratic hyperpolarizabilities (β) have been achieved (up to β(0) = 1500 × 10−30 esu) by reduction of the bond‐length alternation (BLA) in the polyenic chain. In each series of homologous compounds, increasing the number n of conjugated double bonds in the polyenic chain results in a marked bathochromic shift, more pronounced BLA, and exponential increases in μβ(0) values. As a result, polyenic chromophores displaying excellent optical quadratic nonlinearities (μβ values as large as 100 times that of the quadratic NLO benchmark 4‐dimethyl‐amino‐4′‐nitrostilbene (DANS)), as well as satisfactory solubility, have been obtained.

  DOI：

  10.1002/chem.19970030717
• 作为产物：
  描述：

  (E)-3-(2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl)acrylaldehyde 在 盐酸 、 18-冠醚-6 、 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 21.0h， 生成 Julolidine aldehyde
  参考文献：
  名称：

  Large Quadratic Hyperpolarizabilities with Donor–Acceptor Polyenes Exhibiting Optimum Bond Length Alternation: Correlation Between Structure and Hyperpolarizability

  摘要：

  AbstractDonor–acceptor polyenes of various lengths, and that combine aromatic electron‐donating moieties with powerful heterocyclic electron‐withdrawing terminal groups, have been synthesized and characterized as efficient nonlinear optical (NLO) chromophores. Their linear and nonlinear optical properties have been investigated, and variations in these properties have been related to ground‐state polarization (dipole μ) and structure. In particular, unprecedented quadratic hyperpolarizabilities (β) have been achieved (up to β(0) = 1500 × 10−30 esu) by reduction of the bond‐length alternation (BLA) in the polyenic chain. In each series of homologous compounds, increasing the number n of conjugated double bonds in the polyenic chain results in a marked bathochromic shift, more pronounced BLA, and exponential increases in μβ(0) values. As a result, polyenic chromophores displaying excellent optical quadratic nonlinearities (μβ values as large as 100 times that of the quadratic NLO benchmark 4‐dimethyl‐amino‐4′‐nitrostilbene (DANS)), as well as satisfactory solubility, have been obtained.

  DOI：

  10.1002/chem.19970030717

文献信息

• Enhanced chemical reversibility of redox processes in cyanine dye rotaxanes
  作者：Jonathan E. H. Buston、Harry L. Anderson、Frank Marken

  DOI：10.1039/b102068o

  日期：——

  When a cyanine dye is encapsulated inside the cavity of α-cyclodextrin, by rotaxane formation, its one-electron oxidation and reduction become reversible, due to a thousand-fold increase in the kinetic chemical stability of the oxidised and reduced forms of the chromophore.

  当一种菁染料被包裹在α-环糊精的空腔内时，通过形成罗塔烷，其单电子氧化和还原过程变得可逆，这是因为氧化和还原形式的发色团的动力学化学稳定性提高了上千倍。