2-propynyl 2-(2'-pyridyl)-1H-1,3-benzimidazole-6-carboxylate | 1185773-57-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: 2-propynyl 2-(2'-pyridyl)-1H-1,3-benzimidazole-6-carboxylate
• CAS: 1185773-57-2
• 化学式: C₁₆H₁₁N₃O₂
• 分子量: 277.282
• InChiKey: ITZBMPMMKBOALM-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  potassium nitrate 、 顺-双(2,2-二吡啶)二氯化钌(II) 水合物 、 2-propynyl 2-(2'-pyridyl)-1H-1,3-benzimidazole-6-carboxylate 以 甲醇 、 水 为溶剂， 以42%的产率得到bis(2,2'-bipyridyl)-[(2-propynyl)-2-(2-pyridyl)-1H-1,3-benzimidazole-6-carboxylate]ruthenium(II) nitrate
  参考文献：
  名称：

  Heteroligand bipyridyl-pyridylbenzimidazole Ru(II) complexes. Synthesis, structural characterization, and investigation of electronic structure

  摘要：

  Ruthenium(II) complexes with pyridylbenzimidazole derivatives were synthesized and investigated by NMR (H-1 and H-1-H-1 COSY), mass, and electronic spectroscopy. Proceeding from quantum-chemical calculations by the density functionsl methods the analysis was performed of electronic and geometric structure of free ligands and Ru(II)complexes, and the electron absorption spectra of complexes under study were interpreted. Compared to [Ru(bpy)(3)](2+), (bpy = 2,2'-bipyridyl) the charge transfer band in the visible range of the electronic spectra of the complexes in question suffered a red shift by similar to 10 nm, and its intensity in the absorption maximum is several times smaller. The introduction of acceptor substituents into the benzene ring of the pyridylbenzimidazole ligand did not affect significantly the spectral properties of the complexes.

  DOI：

  10.1134/s1070363208080227