| 132100-67-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯氮卓类
• CAS: 132100-67-5
• 化学式: C₅₅H₃₆N₆Zn
• 分子量: 846.321
• InChiKey: PUVGUGHZVRNJHC-WIJNDHAZSA-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：

  zinc diacetate 、 7,10,13,16-tetraphenyl-1,2,3,4-tetrahydro-1,4-methanobenzoquinoxalino<2,3-b>porphyrin 以 甲醇 、 氯仿 为溶剂， 生成
  参考文献：
  名称：

  在刚性桥卟啉-醌系统中模拟远距离光合电子传递

  摘要：

  Photoinduced charge separation as well as subsequent charge recombination is studied in bichromophoric molecules containing a quinone unit (Q) and either a porphyrin (P) or a zinc porphyrin (ZnP) unit that are interconnected by a rigid saturated hydrocarbon bridge that unequivocally determines both the separation and the relative orientation of the chromophores. Across a bridge comprising a separation equivalent to two saturated carbon-carbon bonds (i.e., in P[2]Q), extensive direct overlap between the pi-systems of the chromophores is still possible and accordingly very fast photoinduced charge separation (typically on a 30-40-ps time scale) is observed. However, even across a bridge comprising an extended array of six saturated bonds, charge separation times in the order of 100 ps can still be realized if the driving force for this process is optimized by modification of the porphyrin and of the solvent (a minimum charge-separation time of 65 ps was observed for ZnP[6]Q in chloroform). This implies a rate of charge separation comparable to or somewhat higher than that of the charge transfer from pheophytin to quinone in natural photosynthesis in spite of the fact that the interchromophore distance in the latter process is slightly smaller. The time-resolved microwave conductivity method was employed to confirm the occurrence of photoinduced charge separation as well as to measure the rate of charge recombination in ZnP[6]Q. The latter was found to decrease dramatically at lower solvent polarity, thus indicating the importance of a relatively apolar environment for achieving long-lived charge separation and for storing as large a fraction as possible of the initial light energy used to initiate it.

  DOI：

  10.1021/j100158a010