1,2,5,6-tetrakis(4-N,N-dimethylanilinoethynyl)corannulene | 1414381-57-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 菲及其衍生物
• 英文名称: 1,2,5,6-tetrakis(4-N,N-dimethylanilinoethynyl)corannulene
• 英文别名: N,N-dimethyl-4-[2-[3,8,9-tris[2-[4-(dimethylamino)phenyl]ethynyl]-2-hexacyclo[11.5.2.04,17.07,16.010,15.014,18]icosa-1,3,5,7,9,11,13,15,17,19-decaenyl]ethynyl]aniline
• CAS: 1414381-57-9
• 化学式: C₆₀H₄₆N₄
• 分子量: 823.052
• InChiKey: KEBHOFZTAVGTBZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.8
• 重原子数：
  64
• 可旋转键数：
  12
• 环数：
  10.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  13
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  N,N-dimethyl-4-[2-(trimethylstannyl)ethynyl]aniline 、 1,2,5,6-tetrabromocorannulene 在 四(三苯基膦)钯 作用下， 以 乙二醇二甲醚 为溶剂， 反应 96.0h， 以80%的产率得到1,2,5,6-tetrakis(4-N,N-dimethylanilinoethynyl)corannulene
  参考文献：
  名称：

  Structural, Optical, and Electrochemical Properties of Three-Dimensional Push–Pull Corannulenes

  摘要：

  Electrochemically active corannulene derivatives with various numbers of electron-donating 4-(N,N-dimethylamino)phenylethynyl (1-4) or electron-withdrawing cyanobutadienyl peripheral substitutents (5-8) were prepared. The latter derivatives resulted from formal [2 + 2] cycloaddition of cyanoolefins to 1-4 followed by retro-electrocyclization. Conformational properties were examined by variable-temperature NMR and X-ray diffraction and opto-electronic properties by electronic absorption/emission spectra and electrochemical measurements; these analyses were corroborated by dispersion-corrected density functional calculations at the level of B97-D/def2-TZVPP. In CH2Cl2, 1-4 exhibit intramolecular charge-transfer (ICT) absorptions at 350-550 nm and green (lambda(em) similar to 540 nm) or orange (600 nm) fluorescence with high quantum yields (56-98%) and are more readily reduced than corannulene by up to 490 mV. The variation of optical gap and redox potentials of 1-4 does not correlate with the number of substituents. Cyanobutadienyl corannulenes 5-8 show red-shifted ICT absorptions with end-absorptions approaching 800 nm. Intersubstituent interactions lead to distortions of the corannulene core and lower the molecular symmetry. NMR, X-ray, and computational studies on 5 and 8 with one cyanobutadienyl substituent suggested the formation of intermolecular corannulene dimers. Bowl-inversion barriers around Delta G(double dagger) = 10-11 kcal/mol were determined for these two molecules.

  DOI：

  10.1021/jo302217n

文献信息

• Structural, Optical, and Electrochemical Properties of Three-Dimensional Push–Pull Corannulenes
  作者：Yi-Lin Wu、Mihaiela C. Stuparu、Corinne Boudon、Jean-Paul Gisselbrecht、W. Bernd Schweizer、Kim K. Baldridge、Jay S. Siegel、François Diederich

  DOI：10.1021/jo302217n

  日期：2012.12.21

  Electrochemically active corannulene derivatives with various numbers of electron-donating 4-(N,N-dimethylamino)phenylethynyl (1-4) or electron-withdrawing cyanobutadienyl peripheral substitutents (5-8) were prepared. The latter derivatives resulted from formal [2 + 2] cycloaddition of cyanoolefins to 1-4 followed by retro-electrocyclization. Conformational properties were examined by variable-temperature NMR and X-ray diffraction and opto-electronic properties by electronic absorption/emission spectra and electrochemical measurements; these analyses were corroborated by dispersion-corrected density functional calculations at the level of B97-D/def2-TZVPP. In CH2Cl2, 1-4 exhibit intramolecular charge-transfer (ICT) absorptions at 350-550 nm and green (lambda(em) similar to 540 nm) or orange (600 nm) fluorescence with high quantum yields (56-98%) and are more readily reduced than corannulene by up to 490 mV. The variation of optical gap and redox potentials of 1-4 does not correlate with the number of substituents. Cyanobutadienyl corannulenes 5-8 show red-shifted ICT absorptions with end-absorptions approaching 800 nm. Intersubstituent interactions lead to distortions of the corannulene core and lower the molecular symmetry. NMR, X-ray, and computational studies on 5 and 8 with one cyanobutadienyl substituent suggested the formation of intermolecular corannulene dimers. Bowl-inversion barriers around Delta G(double dagger) = 10-11 kcal/mol were determined for these two molecules.