[Eu(1,1'-(pyridine-2,6-diyl)bis(ethan-1-yl-1-ylidene)(NCS)3(EtOH)]*H2O | 1373335-44-4

• 分子结构分类: 有机化合物
• 英文名称: [Eu(1,1'-(pyridine-2,6-diyl)bis(ethan-1-yl-1-ylidene)(NCS)3(EtOH)]*H2O
• CAS: 1373335-44-4
• 化学式: C₂₈H₂₇EuN₈O₃S₃*H₂O
• 分子量: 789.747
• InChiKey: ZVWKYWISUNQGBO-WLESCNBASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  europium(III) oxide 、 乙醇 、 水 、 potassium thioacyanate 、 2,6-diacetylpyridine bis(benzoylhydrazone) 在 HNO₃ 作用下， 以 乙醇 、 水 为溶剂， 以80%的产率得到[Eu(1,1'-(pyridine-2,6-diyl)bis(ethan-1-yl-1-ylidene)(NCS)3(EtOH)]*H2O
  参考文献：
  名称：

  Two complexes of Eu3+ ion with pentadentate Schiff-base ligands exhibiting red photoluminescence

  摘要：

  Two luminescent europium complexes, Eu(DAPBH)(2)(NO3)(3)center dot 2H(2)O (1) and Eu(DAPBH)(CH3CH2OH) (SCN)(3)center dot H2O (2) (where DAPBH = (1,1'-(pyridine-2,6-diyl) bis(ethan-1-yl-1-ylidene))dibenzohydrazide, have be synthesized and structurally characterized. The Eu3+ ion is 10-coordinated with six N atoms and four O atoms from two pentadentate DAPBH ligands to form a distorted bicapped tetragonal antiprism geometry and the nitrate counter ions are not coordinated to Eu3+ ion in 1, while the 9-coordinate Eu3+ ion is bound to the N atoms of three monodentate thiocyanates (counter ions), three N atoms and two O atoms of a pentadentate DAPBH ligand as well as to the O atom of an ethanol molecule with a distorted monocapped tetragonal antiprism coordination environment in 2. Two complexes exhibit a red luminescence of Eu3+ ion, stemming from the intra-4f transitions, which is contributed to that (1) the coordination sphere of Eu3+ ion completed by pentadentate DAPBH ligands or counter anions effectively protect the excited state of Eu3+ ion from being quenched by water molecules in 1 and 2; (2) there should be a better match between the pentadentate DAPBH ligand triplet excited state and europium D-5(0) excited state. (C) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2012.02.021