bromoaluminum phthalocyanine | 18130-73-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异吲哚及其衍生物
• 英文名称: bromoaluminum phthalocyanine
• 英文别名: AlBr phthalocyanine；Bromoaluminum(2+);2,11,20,29,37,38-hexaza-39,40-diazanidanonacyclo[28.6.1.13,10.112,19.121,28.04,9.013,18.022,27.031,36]tetraconta-1,3,5,7,9,11,13,15,17,19,21(38),22,24,26,28,30(37),31,33,35-nonadecaene
• CAS: 18130-73-9
• 化学式: C₃₂H₁₆AlBrN₈
• 分子量: 619.418
• InChiKey: CAJNYHMGAPBNLH-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  5.32
• 重原子数：
  42
• 可旋转键数：
  0
• 环数：
  10.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  82.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  三溴化铝 、 1,2-二氰基苯 以 喹啉 、 硝基苯 、 苯 为溶剂， 生成 bromoaluminum phthalocyanine
  参考文献：
  名称：

  Highly Photoactive Molecular Semiconductors:  Determination of the Essential Parameters That Lead to an Improved Photoactivity for Modified Chloroaluminum Phthalocyanine Thin Films

  摘要：

  Thin films of chloroaluminum, chlorogallium, and chloroindium phthalocyanines (ClAlPc, ClGaPc, and ClInPc) have been sublimed on SnO2 substrates maintained during sublimation at temperatures ranging from -130 to 190 degrees C. Using this procedure, it is possible to obtain molecular semiconductor layers with a structure varying from amorphous to polycrystalline. These layers were immersed in KI3/KI or KCl solutions at pH = 3.0. This treatment was found to improve drastically the photoelectrochemical activity of ClAlPc thin films. Short-circuit photocurrents J(sc) = 0.75 +/- 0.25 mA/cm(2) were obtained, using polychromatic illumination (35 mW/ cm(2)), after immersion of ClAlPc into KCl solutions while lower J(sc) values (0.3 +/- 0.1 mA/cm(2)) were obtained for KI3/KI solutions. No change in the photoactivity was observed either for ClGaPc or for ClInPc when they were immersed in the same solutions. Both molecular semiconductors provided lower short-circuit photocurrents (J(sc) less than or equal to 0.15 +/- 0.03 mA/cm(2) for ClGaPc; J(sc) less than or equal to 0.20 +/- 0.02 mA/cm(2) for ClInPc). The characterization of the chloro-trivalent metal phthalocyanine films indicates that the hydrolysis of the metal-Cl bond is essential for the occurrence of the physicochemical transformation leading to improved photoactivity. The Al-Cl bond of ClAlPc hydrolyzes, but this reaction does not occur for ClGaPc or for ClInPc. In contact with KI3/KI or KCl solutions at pH = 3.0, bulk hydrolysis occurs for ClAlPc, only if both H3O+ and an anion could diffuse from the solution into the material. The large I-3(-) anion is prevented from doing so for polycrystalline ClAlPc films obtained by sublimation on SnO2 substrates maintained at 180 degrees C. However, it can diffuse easily in more disorganized films obtained at lower substrate temperatures. Powders of the chloro-trivalent metal phthalocyanines as well as bromoaluminum phthalocyanine (BrAlPc) were used to quantify anion incorporation in these materials. After complete hydrolysis of BrAlPc (powder) and ClAlPc (films) there are ca. 50-85% of the anions, generated in situ by the hydrolysis reaction or diffusing from the solution as a consequence of the hydrolysis reaction, that remain in the Pc material. Thus, ca. 50-85% of the protons released by the hydrolysis either protonate the macrocycles or react with Pc(+)O(2)(-) already present in the film. In both cases, anions are necessary to neutralize the excess of positive charges. H2O is also found in the modified films. The presence of protonated Pcs, of anions, and of H2O into what is now HOAlPc (after ClAlPc hydrolysis) modifies the structure of the material as well as its photoactivity.

  DOI：

  10.1021/jp9536357