Journal
INORGANIC CHEMISTRY
Volume 48, Issue 5, Pages 2010-2017Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic801846h
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Funding
- Natural Science Fund Council of China [20671011, 20731002, 20701011, 10876002, 20801005, 20801004]
- Key Laboratory of Structural Chemistry Foundation [060017]
- Basic Research Fund of Beijing Institute of Technology [20060742022, 20070742010]
- China Postdoctoral Science Foundation [20070410037]
- Key Project of Chinese Ministry of Education [208116]
- [1307012]
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A family of organic-inorganic hybrid frameworks, {[Ln(H2O)(4)(pdc)](4)} [XMo12O40]center dot 2H(2)O (Ln = La, Ce, and Nd; X = Si and Ge; H(2)pdc = pyridine-2,6-dicarboxylate), have been prepared under hydrothermal conditions and characterized by single crystal X-ray diffraction analyses, elemental analyses, IR, and thermal gravimetric analyses. Single crystal X-ray diffraction reveals that all six compounds are isostructural, and each consists of a zeolite-like four-connected three-dimensional cationic framework {[Ln(H2O)(4)(pdc)](4)}(4+) and ball-shaped Keggin type [XMo12O40](4-) as templates. Interesting channels exist in the cationic framework with the gismondine topology, and these channels intersect each other to form large cavities, which array in a zigzag fashion and are occupied by nanosized [XMo12O40](4-) counterions. Moreover, these compounds display strong photoluminescent properties in the solid state at room temperature.
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