[(N-methyl-4,4'-bipyridinium)ZnBr3] | 1364664-11-8

• 英文名称: [(N-methyl-4,4'-bipyridinium)ZnBr3]
• CAS: 1364664-11-8
• 化学式: C₁₁H₁₁Br₃N₂Zn
• 分子量: 476.324
• InChiKey: QYABWURICOKUQZ-UHFFFAOYSA-K

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：

  N-methyl-4,4'-bipyridinium chloride monohydrate 、 zinc dibromide 以 水 为溶剂， 以56%的产率得到[(N-methyl-4,4'-bipyridinium)ZnBr3]
  参考文献：
  名称：

  Photochromic Metal Complexes of N-Methyl-4,4′-Bipyridinium: Mechanism and Influence of Halogen Atoms

  摘要：

  Photochromism of N-methyl-4,4'-bipyridinium (MQ(+)) salts and their metal complexes has never been reported. A series of MQ(+) coordinated halozinc complexes [(MQ)ZnX3] (X = Cl (1), Br (2), I (3)) and [(MQ)ZnCl1.53I1.47](2)(MQ)ZnCl1.68I1.32 (4), with better physicochemical stability than halide salts of the MQ(+) cation, have been found to exhibit different photochromic behaviors. Compounds 1-3 are isostructural, but only 1 and 2 show photochromism. Introduction of partial Cl atoms to nonphotochromic compound 3 yields compound 4, which also displays photochromism. The photochromic response of 1, 2, and 4 indicates the presence of their long-lived charge separation states, which originate from X -> MQ(+) electron transfer according to ESR and XPS measurements. Studies on the influence of different coordinated halogen atoms demonstrate that the Cl atom may be a more suitable electron donor than Br and I atoms to design redox photochromic metal complexes.

  DOI：

  10.1021/ic2020868