2-(trimethylstannyl)-3-(n-tetradecyl)thiophene | 1327275-54-6

• 分子结构分类: 有机化合物 - 有机金属化合物 - 金属芳基
• 英文名称: 2-(trimethylstannyl)-3-(n-tetradecyl)thiophene
• CAS: 1327275-54-6
• 化学式: C₂₁H₄₀SSn
• 分子量: 443.325
• InChiKey: FNUPYYVREDGJLV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.54
• 重原子数：
  23.0
• 可旋转键数：
  14.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.81
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  2-(trimethylstannyl)-3-(n-tetradecyl)thiophene 、 1,3-dibromo-5-tetradecyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione 在 bis-triphenylphosphine-palladium(II) chloride 作用下， 以 四氢呋喃 为溶剂， 反应 12.0h， 以72%的产率得到1,3-bis[3-(n-tetradecyl)thien-2-yl]-5-(n-tetradecyl)thieno[3,4-c]pyrrole-4,6-dione
  参考文献：
  名称：

  Thieno[3,4-c]pyrrole-4,6-dione-Based Polymer Semiconductors: Toward High-Performance, Air-Stable Organic Thin-Film Transistors

  摘要：

  We report a new,p-type semiconducting polymer family based on the thieno[3,4-c]pyrrole-4,6-dione (TPD) building block, which exhibits good processability as well as good mobility and lifetime stability in thin-film transistors (TFTs). TPD homopolymer P1 was synthesized via Yamamoto coupling, whereas copolymers P2-P8 were synthesized via Stile coupling. All of these polymers were characterized by chemical analysis as well as thermal analysis, optical spectroscopy, and cyclic voltammetry. P2-P7 have lower-lying HOMOs than does P3HT by 0.24-0.57 eV, depending on the donor counits, and exhibit large oscillator strengths in the visible region with similar optical band gaps throughout the series (similar to 1.80 eV). The electron-rich character of the dialkoxybithiophene counits in P8 greatly compresses the band gap, resulting in the lowest E-g(opt) in the series (1.66 eV), but also raising the HOMO energy to -5.11 eV. Organic thin-film transistor (OTFT) electrical characterization indicates that device performance is very sensitive to the oligothiophene conjugation length, but also to the solubilizing side chain substituEnts (length, positional pattern). The corresponding thin-film microstructures and morphologies were investigated by XRD and AFM to correlate with the OTFT performance. By strategically varying the oligothiophene donor conjugation length and optimizing the solubilizing side chains, a maximum OTFT hole mobility of similar to 0.6 cm(2) V-1 s(-1) is achieved for P4-based devices. OTFT environmental (storage) and operational (bias) stability in ambient was investigated, and enhanced performance is observed due to the low-lying HOMOs. These results indicate that the TPD is an excellent building block for constructing high-performance polymers for p-type transistor applications due to the excellent processability, substantial hole mobility, and good device stability.

  DOI：

  10.1021/ja205398u