[Zn(maleinate)(thiourea)2]n | 732236-95-2

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: [Zn(maleinate)(thiourea)2]n
• CAS: 732236-95-2
• 化学式: C₆H₁₀N₄O₄S₂Zn
• 分子量: 331.692
• InChiKey: ZXHWAQJOBXTHAH-GRHBHMESSA-L

反应信息

• 作为产物：
  描述：

  马来酸酐 、 zinc(II) sulfate heptahydrate 、 硫脲 以 水 为溶剂， 以99%的产率得到[Zn(maleinate)(thiourea)2]n
  参考文献：
  名称：

  Thermodynamically controlled products: novel motif of metallohelicates stabilized by inter- and intra-helix hydrogen bonds

  摘要：

  Two temperature and/or time dependent self-assembly processes of maleic dianion (male), thiourea and zinc(II) or cadmium(II) ions have been studied. By prolonging the reaction time and heating, the kinetic product [{Zn(male)(tu)(H2O)}2]·4H2O 1 can be converted into the thermodynamic product [{Zn(male)(tu)2}n] 2. In the case of the Cd–maleate–tu system, the thermodynamic product with helical formation [{(male)Cd(tu)2}2(male)Cd(tu)(H2O)2]n4 was obtained from the kinetically controlled product [Cd(Hmale)2(tu)2(H2O)2] 3 by prolonging the reaction time. The thermodynamic helicate 2 bears a new metallohelicate motif in which the helical structure is induced and stabilized by interhelix hydrogen bonding. On the contrary, 4 also bears an infinite metallohelicate motif where the helix is induced and stabilized by intrahelix hydrogen bonding and a 3-D network is formed through hydrogen bonds and short S⋯S contacts among neighboring helixes. All the complexes were characterized by X-ray crystallography.

  DOI：

  10.1039/a908070h