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Acta Chimica Sinica ›› 2010, Vol. 68 ›› Issue (12): 1199-1204. Previous Articles     Next Articles

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配位聚合物M(H2O)2[Ni(CN)4]•xH2O的合成、晶体结构及性能研究

陆润芹，陈莺莺，周虎，袁爱华*   

  1. 江苏科技大学材料科学与工程学院 镇江 212003
  • 投稿日期:2009-09-15 修回日期:2009-11-17 发布日期:2010-02-25
  • 通讯作者: 袁爱华
  • 基金资助:

    江苏省高校自然科学基金(No. 07KJB150030)

2O)2[Ni(CN)4]•xH2O

LU Run-Qin, CHEN Ying-Ying, ZHOU Hu, YUAN Ai-Hua   

  • Received:2009-09-15 Revised:2009-11-17 Published:2010-02-25

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A 2D Hofmann-type cyano-bridged coordination polymer Mn(H2O)2[Ni(CN)4]•4H2O (1) has been synthesized by self-assembly based on [Ni(CN)4]2－ and Mn2＋ as building blocks. The single crystals were obtained successfully by slow solution diffusion method and the crystal structure has been solved. 1 belongs to orthorhombic system, space group Cmcm, cell parameters: a＝0.73080(5) nm, b＝1.21372(8) nm, c＝1.40875(9) nm, α＝β＝γ＝90°. Ni and Mn centers are connected by cyano-bridges alternately, resulting in 2D undulate sheets. A series of powder samples M(H2O)2[Ni(CN)4]•xH2O (M＝Mn, Fe, Co, Ni, Cd) have been synthesized by quick mixing method, which are isostructural with 1 confirmed by PXRD patterns. VT-PXRD and TG analysis indicate that these coordination polymers are of high stability. A 3D porous coordination polymer has been constructed with dehydrated sample of Mn(H2O)2[Ni(CN)4]•xH2O and pillared ligand pyrazine, which exhibits gas storage property.

Key words: Hofmann-type, coordination polymer, [Ni(CN)4]2－, crystal structure, adsorption