| 1323953-23-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• CAS: 1323953-23-6
• 化学式: C₂₀H₃₄O₄SSn
• 分子量: 489.264
• InChiKey: HKBUXGZJYNERSA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.71
• 重原子数：
  26.0
• 可旋转键数：
  9.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  36.92
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  在 吡啶 、 盐酸 、 bis-triphenylphosphine-palladium(II) chloride 、 potassium carbonate 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 生成
  参考文献：
  名称：

  A Diels–Alder crosslinkable host polymer for improved PLED performance: the impact on solution processed doped device and multilayer device performance

  摘要：

  我们报告了一种聚芴衍生物 PFO(X)的合成过程，这种衍生物带有呋喃悬垂基团，能够与含有马来酰亚胺的小分子被动交联剂（PC）和含有马来酰亚胺的红色发射供体-受体-掺杂剂分子 bE-BTD(X) 进行 DielsâAlder 交联。最初的设想是，将这三种成分混合在一起，就能得到一种掺杂剂浓度可以增加到能够实现从主聚合物到发射掺杂剂的完全能量转移的系统。由于这类体系经常出现淬灭和发射极位移现象，表明发射体聚集，因此假设发射掺杂剂与主聚合物交联将导致掺杂发射体去聚集。在 PFO(X) 和 bE-BTD(X) 薄膜中，当掺杂剂浓度从 1% 增加到 8% 时，发射最大值出现了 16 nm 的浴色偏移，这表明掺杂剂正在聚集。在加入 PC 并加热以影响交联的类似薄膜中，也观察到了类似的 16 nm 发射最大值偏移，这表明聚集仍在发生，且不受加热步骤的影响。无论是否包含加热步骤，都能观察到类似的亮度下降。不过，交联确实产生了一个不溶解的网络，从而可以在随后的溶液中沉积更多的层，这一点并不出乎意料。当在 PFO(X)/PC 器件中使用电子传输层（ETL）时，与不使用 ETL 的器件相比，亮度和发光效率分别提高了 190% 和 490%，这表明这种 DielsâAlder 可交联体系可以通过溶液方法进行多层沉积。当加入 bE-BTD(X) 作为掺杂发射体时，与省略 ETL 层的器件相比，加入 ETL 层的器件的亮度和发光效率也有类似的提高。

  DOI：

  10.1039/c2jm14591j

文献信息

• Donor–Acceptor–Donor-based π-Conjugated Oligomers for Nonlinear Optics and Near-IR Emission
  作者：Stefan Ellinger、Kenneth R. Graham、Pengjie Shi、Richard T. Farley、Timothy T. Steckler、Robert N. Brookins、Prasad Taranekar、Jianguo Mei、Lazaro A. Padilha、Trenton R. Ensley、Honghua Hu、Scott Webster、David J. Hagan、Eric W. Van Stryland、Kirk S. Schanze、John R. Reynolds

  DOI：10.1021/cm201424a

  日期：2011.9.13

  A family of multi-heterocycle donor acceptor donor (DAD) telechelic conjugated oligomers designed for two-photon absorption (2PA) and emission in the near-infrared (near-IR) were prepared, and the relationship between their spectral, structural, and electrochemical properties were investigated. These oligomers, based on electron-rich thiophene, phenylene, and 3,4-ethylenedioxythiophene (EDOT) units as donors along with electron-deficient benzothiadiazole or its derivative units as acceptors, have been characterized through linear absorbance and fluorescence measurements, nonlinear absorbance, cyclic voltammetry, and differential pulse voltammetry to demonstrate the evolution of narrow HOMO-LUMO gaps ranging from 1.05 to 1.95 eV, with the oligomers composed of EDOT and benzo[1,2-c,3,4-c']bis[1,2,5]thiadiazole (BBT) exhibiting the narrowest gap. The absorption maxima ranges from 517 to 846 nm and the fluorescence maxima ranges from 651 to 1088 nm for the different oligomers. Z-scan and two-photon fluorescence were used to measure the frequency degenerate 2PA of the different oligomers. The oligomer's 2PA cross sections ranged from 900-3500 GM, with the oligomer containing EDOT donor units and a BBT acceptor unit exhibiting the largest 2PA cross section. The use of these oligomers in red to near-IR emitting polymer light-emitting diodes (PLEDs) was demonstrated by blending the soluble emitting oligomers into a suitable host matrix. Energy transfer from the matrix to the emitting oligomer can be achieved, resulting in PLEDs with pure oligomer emission.