tris(4,4’-tert-butyl-2,2’-bipyridine)cobalt(III) | 1000591-22-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: tris(4,4’-tert-butyl-2,2’-bipyridine)cobalt(III)
• 英文别名: Co(4,4'-^tBu-bpy)₃³⁺；Co(4,4'-di-tert-butyl-2,2′-bipyridyl)₃³⁺；tris(4,4'-di-tert-butyl-2,2'-bipyridine)cobalt(III)；tris(4,4'-di-tert-butyl-bipyridine)cobalt(III)；Co(4,4'-di-tert-butyl-2,2'-dipyridyl)3(3+)；Co(II)(dtb-bpy)3(3+)；[Co(dtbbpy)3](3+)；4-Tert-butyl-2-(4-tert-butylpyridin-2-yl)pyridine;cobalt(3+)
• CAS: 1000591-22-9
• 化学式: C₅₄H₇₂CoN₆
• 分子量: 864.199
• InChiKey: MEESVYSNMQXGKL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.21
• 重原子数：
  61
• 可旋转键数：
  6
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  77.3
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  tris(4,4'-di-tert-butyl-2,2'-bipyridine)cobalt(II) diperchlorate 在 NOBF₄ 作用下， 以 further solvent(s) 为溶剂， 生成 tris(4,4’-tert-butyl-2,2’-bipyridine)cobalt(III)
  参考文献：
  名称：

  Roles of Electrolytes on Charge Recombination in Dye-Sensitized TiO₂ Solar Cells (2):  The Case of Solar Cells Using Cobalt Complex Redox Couples

  摘要：

  Dye-sensitized solar cells (DSC) were prepared from nanoporous TiO2 electrodes with two different cobalt complex redox couples, propylene-1,2-bis(o-iminobenzylideneaminato)cobalt(II) {Co-II(abpn)} and tris(4,4'-di-tert-buthyl-2,2'-bipyridine)cobalt(II) diperchlorate {Co-II(dtb-bpy)(3)(ClO4)(2)}. The performances of the DSCs were examined with varying the concentrations of the redox couples and Li cations in methoxyacetonitrile. Under 1 sun conditions, short-circuit currents (J(sc)) increased with the increase of the redox couple concentration, and the maximum 1,c was found at the Li+ concentration of 100 mM. To rationalize the observed trends of J(sc), electron diffusion coefficients and lifetimes in the DSCs were measured. Electron diffusion coefficients in the DSCs using cobalt complexes were comparable to the previously reported values of nanoporous TiO2 Electron lifetime was independent of the concentration of the redox couples when the concentration ratio of Co-II(L) and Co-III(L) was fixed. With the increase of Li+ concentration, the electron lifetime increased. These results were interpreted as due to their slow charge-transfer kinetics and the cationic nature of Co complex redox couples, in contrast to the anionic redox couple of I-/I-3(-). The increase of the lifetimes with Li+ was interpreted with the decrease of the local concentration of Co-III. near the surface of TiO2. The addition of 4-tert-butylpyridine (tBP) with the presence of Li+ increased I,, significantly. The observed increase of the electron lifetime by tBP could not explain the large increase of J(sc) implying that tBP facilitates the charge transfer from Co-II(L) to dye cation, with the association of the change of the reorganization energy between Co-II and Co-III.

  DOI：

  10.1021/jp046002d

文献信息

• Ruthenium complexes bearing π-extended pyrrolo-styryl-bipyridine ligand: electronic properties and evaluation as photosensitizers
  作者：Arnald Grabulosa、David Martineau、Marc Beley、Philippe C. Gros、Silvia Cazzanti、Stefano Caramori、Carlo A. Bignozzi

  DOI：10.1039/b814819h

  日期：——

  A new Ru(L)(dcbpy)(NCS)2 dye containing a pyrrole-based π-extended ligand has been prepared and showed very good light harvesting ability with near 70% IPCE in the visible region. The performance is very close to those of the standard N3 with a wider absorption range.

  一种新的含有吡咯基π-扩展配体的Ru(L)(dcbpy)(NCS)2染料已被制备，显示出优良的光吸收能力，在可见光区域的IPCE接近70%。其性能非常接近标准N3，但吸收范围更广。