Four 2D "fully reduced" polyoxovanadates: Vanadium oxide clusters encapsulating different guest molecules

Hongxiang Wan, Congling Wang, Yu Zhang, Hao Miao, Shuai Zhou, Yan Xu

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Abstract

Four two-dimensional fully reduced polyoxovanadates, namely, [Cd(DAP)2]4[HVIII3VIV18P6O60(DAP)3(HOCH2CH2OH)]·10H2O (1), [Cd(DAP)2]4[HVIII3VIV18P6O60(DAP)3(CH3OH)]·11H2O (2), [Cd(DAP)2]4[HVIII3VIV18P6O60(DAP)3(CH3CH2OH)]·4H2O (3) and CoIII(DAP)3[CoII(DAP)2]3[VIII3VIV18P6O60(DAP)3(HOCH2CH2OH)]·14H2O (4) were synthesized by virtue of the reducing power of alkylamine in hydrothermal conditions. Single-crystal X-ray structural analysis, magnetic measurement, IR spectroscopy, elemental analysis, and thermogravimetric measurements were performed to analyze the structures and properties of these four compounds. Structural analysis indicates that the four compounds contain the same huge low-valent vanadium oxide anion cages [VIII3VIV18P6O60(DAP)3]9-, and the cages can catch different guest molecules. Four cages are linked by Co or Cd atoms to form a four-membered ring, while adjacent four-membered rings are connected to each other by sharing edges to make an inorganic-organic hybrid layer. The magnetic susceptibility measurements of four compounds indicate ferrimagnetic interactions between vanadium ions.

Original languageEnglish
Pages (from-to)10498-10505
Number of pages8
JournalInorganic Chemistry
Volume53
Issue number19
DOIs
StatePublished - 6 Oct 2014

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