A new organically templated magnesium sulfate: structure, spectroscopic analysis, and thermal behaviour

详细信息    查看全文

• 作者：Dhouha ben Hassan (1)
  Walid Rekik (1)
  Houcine Nali (1)
  Tahar Mhiri (1)
  
• 关键词：amine magnesium sulfate ; supramolecular network ; crystal structure ; thermal decomposition ; dehydration
• 刊名：Chemical Papers
• 出版年：2014
• 出版时间：February 2014
• 年：2014
• 卷：68
• 期：2
• 页码：210-216
• 全文大小：
• 作者单位：Dhouha ben Hassan (1)
  Walid Rekik (1)
  Houcine Nali (1)
  Tahar Mhiri (1)
  
  1. Laboratoire Physico-chimique de lt Solide, Dartement de Chimie, Facultdes Sciences de Sfax, Universitde Sfax, BP 1171, 3000, Sfax, Tunisie
  
• ISSN：1336-9075

文摘

A new magnesium sulfate templated by 2-methylpiperazine, (C5H14N2)[Mg(H2O)6](SO4)2, was prepared by the slow evaporation method. The obtained crystals were investigated by the Raman and FTIR spectroscopy and crystallographically characterised by single-crystal X-ray diffraction. The compound crystallises in the monoclinic system, space group P21/n. Supramolecular network of this hybrid material consists of Mg2+ cations octahedrally coordinated by six water molecules, sulfate tetrahedra and protonated and disordered diamine linked together by two types of hydrogen bonds: OW and N. Dehydration of the title compound takes place in three steps. Thermal decomposition of the anhydrous phase consists in the loss of the organic moiety and one sulfate group leading to the formation of magnesium sulfate.