6,7,9,10,12,13,15,16,18,19,21,22,24,25-Tetradecahydro-5,8,11,14,17,20,23,26-octaoxa-benzocyclotetracosene-2-carboxylic acid | 182917-32-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 6,7,9,10,12,13,15,16,18,19,21,22,24,25-Tetradecahydro-5,8,11,14,17,20,23,26-octaoxa-benzocyclotetracosene-2-carboxylic acid
• 英文别名: 2,5,8,11,14,17,20,23-Octaoxabicyclo[22.4.0]octacosa-1(24),25,27-triene-26-carboxylic acid；2,5,8,11,14,17,20,23-octaoxabicyclo[22.4.0]octacosa-1(24),25,27-triene-26-carboxylic acid
• CAS: 182917-32-4
• 化学式: C₂₁H₃₂O₁₀
• 分子量: 444.479
• InChiKey: XCOSFSWVXVCRQR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.6
• 重原子数：
  31
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  111
• 氢给体数：
  1
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  6,7,9,10,12,13,15,16,18,19,21,22,24,25-Tetradecahydro-5,8,11,14,17,20,23,26-octaoxa-benzocyclotetracosene-2-carboxylic acid 在 氯化亚砜 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 2,5,8,11,14,17,20,23-octaoxabicyclo[22.4.0]octacosa-1(24),25,27-triene-26-carbonyl chloride
  参考文献：
  名称：

  Ganjali; Rouhollahi; Moghimi, Polish Journal of Chemistry, 1996, vol. 70, # 9, p. 1172 - 1181

  摘要：

  DOI：
• 作为产物：
  描述：

  1,20-dichloro-3,6,9,12,15,18-hexaoxaeicosane 在 ammonium hydroxide 、 18-冠醚-6 、 potassium carbonate 、 silver(l) oxide 作用下， 以 乙醇 、 乙腈 为溶剂， 反应 136.0h， 生成 6,7,9,10,12,13,15,16,18,19,21,22,24,25-Tetradecahydro-5,8,11,14,17,20,23,26-octaoxa-benzocyclotetracosene-2-carboxylic acid
  参考文献：
  名称：

  Molecular motion in crown ethers. Application of ¹³C and ²H NMR to the study of 4-carboxybenzo-24-crown-8 ether and its KNCS complex in solution and in the solid phase

  摘要：

  标题冠环中已通过¹³C CPMAS NMR检测到大振幅固相分子运动。为了研究动态过程的细节，制备了两种选择性氘代的d₄衍生物，并通过²H NMR在温度变化下进行了检查。通过差示扫描量热法（DSC）验证了发生在约277K附近的相变，并开发了一个涉及CD₂基团等效两位翻转的运动过程模型。CD₂运动的振幅显然随着基团靠近芳香环而减小。探讨了KNCS络合对¹³C CPMAS谱和溶液中¹³C自旋晶格弛豫时间的影响。关键词：大环醚，固相动力学。

  DOI：

  10.1139/v96-161

文献信息

• Mechanically interlocked [an]daisy chain networks
  作者：Yongming Wang、Zhaoming Zhang、Hao Zhang、Jun Zhao、Guoquan Liu、Ruixue Bai、Yuhang Liu、Wei You、Wei Yu、Xuzhou Yan

  DOI：10.1016/j.chempr.2023.04.005

  日期：2023.8

  Herein, we describe a supramolecular polymerization followed by an interlocking strategy to construct [an]daisy chain-based MIPs, namely, mechanically interlocked [an]daisy chain networks (DCMINs). On account of the linkage of continuous mechanical bonds, the cyclic components on the [an]daisy chain backbones of DCMINs are capable of undergoing a synergistic inward movement under external force and

  机械联锁聚合物（MIP）能够通过集体机械键同步引导力和运动，从而构成了开发先进聚合物材料的多功能平台。然而，轻松制备结构复杂的 MIP 仍然是一个重大挑战。在此，我们描述了超分子聚合，然后采用联锁策略来构建基于菊花链的 MIP，即机械联锁菊花链网络（DC MIN）。由于连续机械键的连接，DC菊花链主链上的循环组件MINs 能够在外力作用下进行协同向内运动，从而最大化收缩运动，这是一种尚未开发的运动方式。相干菊花链的同步运动可以很容易地被激活以适应网络变形并有效地耗散能量，从而增强DC MIN 的机械性能。这些发现为制造具有新兴机械性能的机械互锁菊花链材料提供了指导原则。
• A Stretchable and Tough Graphene Film Enabled by Mechanical Bond
  作者：Chunyu Wang、Boyue Gao、Fuyi Fang、Wenhao Qi、Ge Yan、Jun Zhao、Wenbin Wang、Ruixue Bai、Zhaoming Zhang、Zhitao Zhang、Wenming Zhang、Xuzhou Yan

  DOI：10.1002/anie.202404481

  日期：2024.7.8

  The pursuit of fabricating high‐performance graphene films has aroused considerable attention due to their potential for practical applications. However, developing both stretchable and tough graphene films remains a formidable challenge. To address this issue, we herein introduce mechanical bond to comprehensively improve the mechanical properties of graphene films, utilizing [2]rotaxane as the bridging unit. Under external force, the [2]rotaxane cross‐link undergoes intramolecular motion, releasing hidden chain and increasing the interlayer slip distance between graphene nanosheets. Compared with graphene films without [2]rotaxane cross‐linking, the presence of mechanical bond not only boosted the strength of graphene films (247.3 vs 74.8 MPa) but also markedly promoted the tensile strain (23.6 vs 10.2 %) and toughness (23.9 vs 4.0 MJ/m3). Notably, the achieved tensile strain sets a record high and the toughness surpasses most reported results, rendering the graphene films suitable for applications as flexible electrodes. Even when the films were stretched within a 20 % strain and repeatedly bent vertically, the light‐emitting diodes maintained an on‐state with little changes in brightness. Additionally, the film electrodes effectively actuated mechanical joints, enabling uninterrupted grasping movements. Therefore, the study holds promise for expanding the application of graphene films and simultaneously inspiring the development of other high‐performance two‐dimensional films.