| 577750-36-8

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• CAS: 577750-36-8
• 化学式: C₂₅H₃₅N₃O₂Si*F₆P*H
• 分子量: 583.629
• InChiKey: GQXDJBHJUYTFBF-GUTACTQSSA-O

计算性质

• 辛醇/水分配系数(LogP)：
  5.84
• 重原子数：
  38.0
• 可旋转键数：
  6.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  57.09
• 氢给体数：
  2.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  在 氯化亚砜 、 ammonium hexafluorophosphate 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 2.0h， 以97%的产率得到
  参考文献：
  名称：

  Enhancing Molecular Recognition in Electron Donor–Acceptor Hybrids via Cooperativity

  摘要：

  Herein, we report the synthesis of guanidinium bis-porphyrin tweezers 1 and fullerene carboxylate 3, their assembly into a novel supramolecular 1@3 electron donor acceptor hybrid, and its characterization. In solution, the binding constant affording 1@3 is exceptionally high. 1@3, which features a highly confined topography, builds up from a combination of guanidinium-carboxylate hydrogen bonding and pi-pi stacking/charge-transfer motifs. The latter is governed by interactions between the electron-donating porphyrin and the electron-accepting fullerene. Importantly, positive cooperativity between the applied binding motifs is corroborated by a number of experimental techniques, such as NMR, absorption, fluorescence, etc. In addition, transient absorption experiments shed light onto electron-transfer processes taking place in the ground state and upon photoexcitation. In fact, porphyrin excitation powers an electron transfer to the fullerene yielding charge separated state lifetimes in the nanosecond regime.

  DOI：

  10.1021/ja5052236

文献信息

• A tetraguanidinium macrocycle for the recognition and cavity expansion of calix[4]arene tetraoxoanions
  作者：Julián Valero、Javier de Mendoza

  DOI：10.1080/10610278.2013.835814

  日期：2013.9.18

  tetraguanidinium macrocycle which forms robust complexes with diverse calix[4]arene tetraoxoanions through hydrogen bonding and electrostatic interactions. The binding behaviour and affinity strength of these constructs have been measured by NMR and isothermal titration calorimetry. Besides, VT NMR experiments show that this novel cyclic tetracation is able to stabilise the cone conformation of these calix[4]arenes

  在过去的十年中，分子容器引起了越来越多的兴趣。这些超分子结构已在催化、分子传感或作为关键中间体的绝缘体等方面得到应用。在这项研究中，我们描述了四胍大环的合成和结合特性，它通过氢键和静电相互作用与不同的杯[4]芳烃四氧阴离子形成坚固的复合物。这些构建体的结合行为和亲和强度已通过 NMR 和等温滴定量热法进行了测量。此外，VT NMR 实验表明，这种新型环状四阳离子能够稳定这些杯[4]芳烃的锥体构象。