[Tb(2,6-bis(benzimidazol-2-yl)pyridine)2(NO3)2]NO3 | 151894-10-9

• 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: [Tb(2,6-bis(benzimidazol-2-yl)pyridine)2(NO3)2]NO3
• CAS: 151894-10-9
• 化学式: C₃₈H₂₆N₁₂O₆Tb*NO₃
• 分子量: 967.632
• InChiKey: MKSVHWMJTBDHGN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  terbium(III) nitrate hexahydrate 、 2,6-双(2-苯并咪唑基)吡啶 以 丙酮 为溶剂， 生成 [Tb(2,6-bis(benzimidazol-2-yl)pyridine)2(NO3)2]NO3
  参考文献：
  名称：

  Crystal structures and luminescence spectra of ten-co-ordinate lanthanide(III) complexes (Ln = Ce, Sm, Eu or Tb) with 2,6-bis(benzimidazol-2-yl)pyridine

  摘要：

  The complexes [LnL2(NO3)2]NO3.nMeOH [L = 2,6-bis(benzimidazol-2-yl)pyridine, Ln = Ce 1. n = 3; Ln = Eu 3 or Tb 4, n = 2] have been characterized by single-crystal X-ray diffraction, IR and H-1 NMR spectroscopy and molar conductivity. They are ten-co-ordinate with six nitrogen atoms from two tridentate L ligands and four oxygen atoms from two bidentate nitrates, crystallizing in the triclinic system, space group P1BAR, Z = 2: 1, a = 10.907(1), b = 14.498(1), c = 16.187(2) angstrom, alpha = 63.02(1), beta = 75.54(1), gamma = 74.54(1)-degrees; 3, a = 10.864(8), b = 14.57(1), c = 15.95(1) angstrom, alpha = 116.92(8), beta = 90.46(8), gamma = 106.32(8)-degrees; 4, a = 10.847(1), b = 14.567(2), c = 15.847(2) angstrom, a = 117.25(1), beta = 90.39(1), gamma = 106.37(1)-degrees. The luminescence spectra of complexes 2 (Ln = Sm), 3 and 4 were recorded at room temperature in the solid state, and the quantum yields measured in methanol solution were in the order Eu > Tb > Sm. In the luminescence spectrum of complex 3, the electric dipole transitions 5D0 --> F-7(2) and 5D0 --> F-7(4) are more intense than is the magnetic dipole transition 5D0 --> F-7(1), and the latter comprises three bands, suggesting a low C, symmetry for the Eu3+ ion, consistent with the crystallographic results.

  DOI：

  10.1039/dt9940002523