2,3-bis[N,N-bis(2'-pyridylmethyl)aminomethyl]pyrazine | 1448545-34-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 2,3-bis[N,N-bis(2'-pyridylmethyl)aminomethyl]pyrazine
• 英文别名: N-[[3-[[bis(pyridin-2-ylmethyl)amino]methyl]pyrazin-2-yl]methyl]-1-pyridin-2-yl-N-(pyridin-2-ylmethyl)methanamine
• CAS: 1448545-34-3
• 化学式: C₃₀H₃₀N₈
• 分子量: 502.622
• InChiKey: YJFSTDIFLJFNSD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  38
• 可旋转键数：
  12
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  83.8
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  2,3-bis[N,N-bis(2'-pyridylmethyl)aminomethyl]pyrazine 、 [FeII(NCS)2(pyridine)4] 、 水 、 N,N-二甲基甲酰胺 以 乙醇 为溶剂， 反应 1.0h， 生成
  参考文献：
  名称：

  Spin Crossover Behavior of Dinuclear Fe ^II Complexes with Bis‐Tetradentate Bridging‐Type Ligands

  摘要：

  AbstractThe preparation and characterization of two new FeII dinuclear complexes with bis‐tetradentate bridging‐type ligands [{Fe(NCS)2}2(L)]·DMF·2H2O (1: L = L1{2,5‐bis[N,N‐bis(2‐pyridylmethyl)aminomethyl]pyrazine}, 2: L = L2{2,3‐bis[N,N‐bis(2‐pyridylmethyl)aminomethyl]pyrazine}) are reported. Magnetic measurements reveal that complexes 1 and 2 exhibit different thermal spin‐crossover behavior. Complex 1 shows a crystalline solvent effect on spin crossover (SCO). After desorption of the crystalline solvent by heating, an abrupt one‐step transition with a hysteresis loop was observed for the desolvated form 1′. Conversely, a gradual two‐step SCO was obtained for 2. The photomagnetic effect was also investigated in 1′ and 2, and both complexes clearly show light‐induced excited spin state trapping. Interestingly, one‐step and two‐step thermal relaxation were observed for 1′ and 2, respectively. Such different SCO properties occur because of the cooperative effects owing to the structure of the ligand.

  DOI：

  10.1002/ejic.201201069
• 作为产物：
  描述：

  二甲基吡啶胺 、 α,α,α',α'-tetrabromo-2,3-dimethyl-pyrazine 在 potassium carbonate 作用下， 以 乙腈 为溶剂， 反应 2.5h， 以28.7%的产率得到2,3-bis[N,N-bis(2'-pyridylmethyl)aminomethyl]pyrazine
  参考文献：
  名称：

  Spin Crossover Behavior of Dinuclear Fe ^II Complexes with Bis‐Tetradentate Bridging‐Type Ligands

  摘要：

  AbstractThe preparation and characterization of two new FeII dinuclear complexes with bis‐tetradentate bridging‐type ligands [{Fe(NCS)2}2(L)]·DMF·2H2O (1: L = L1{2,5‐bis[N,N‐bis(2‐pyridylmethyl)aminomethyl]pyrazine}, 2: L = L2{2,3‐bis[N,N‐bis(2‐pyridylmethyl)aminomethyl]pyrazine}) are reported. Magnetic measurements reveal that complexes 1 and 2 exhibit different thermal spin‐crossover behavior. Complex 1 shows a crystalline solvent effect on spin crossover (SCO). After desorption of the crystalline solvent by heating, an abrupt one‐step transition with a hysteresis loop was observed for the desolvated form 1′. Conversely, a gradual two‐step SCO was obtained for 2. The photomagnetic effect was also investigated in 1′ and 2, and both complexes clearly show light‐induced excited spin state trapping. Interestingly, one‐step and two‐step thermal relaxation were observed for 1′ and 2, respectively. Such different SCO properties occur because of the cooperative effects owing to the structure of the ligand.

  DOI：

  10.1002/ejic.201201069

文献信息

• Spin Crossover Behavior of Dinuclear Fe ^II Complexes with Bis‐Tetradentate Bridging‐Type Ligands
  作者：Shinji Kanegawa、Soonchul Kang、Osamu Sato

  DOI：10.1002/ejic.201201069

  日期：2013.2.18

  AbstractThe preparation and characterization of two new FeII dinuclear complexes with bis‐tetradentate bridging‐type ligands [Fe(NCS)2}2(L)]·DMF·2H2O (1: L = L12,5‐bis[N,N‐bis(2‐pyridylmethyl)aminomethyl]pyrazine}, 2: L = L22,3‐bis[N,N‐bis(2‐pyridylmethyl)aminomethyl]pyrazine}) are reported. Magnetic measurements reveal that complexes 1 and 2 exhibit different thermal spin‐crossover behavior. Complex 1 shows a crystalline solvent effect on spin crossover (SCO). After desorption of the crystalline solvent by heating, an abrupt one‐step transition with a hysteresis loop was observed for the desolvated form 1′. Conversely, a gradual two‐step SCO was obtained for 2. The photomagnetic effect was also investigated in 1′ and 2, and both complexes clearly show light‐induced excited spin state trapping. Interestingly, one‐step and two‐step thermal relaxation were observed for 1′ and 2, respectively. Such different SCO properties occur because of the cooperative effects owing to the structure of the ligand.