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Original Articles

Syntheses, characterization, and crystal structures of two fluorinated gallium phosphates templated by organic amines

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Pages 1254-1264 | Received 12 Nov 2010, Accepted 27 Jan 2011, Published online: 08 Apr 2011
 

Abstract

Two fluorinated gallium phosphates templated by organic amines, (C4H15N3)[Ga3F2(PO4)3] (1) and [(C2H10N2)(C2H9N2)][Ga3F4(HPO4)4] (2), have been synthesized under hydrothermal and solvothermal conditions, respectively. The compounds were characterized by elemental analyses, FT-IR spectroscopy, and powder X-ray diffraction. Their crystal structures were determined from single-crystal X-ray diffraction. The crystal structure of 1 has a 3-D framework with 10-membered ring channels along the b-axis. The crystal structure of 2 is an infinite 1-D chain structure, further forming a 3-D supramolecular structure with pseudo 10-membered ring channels along the a-axis through O–H ··· O hydrogen bonds. The protonated organic amine cations are located in the inorganic channel and interact with the polyanion framework both electrostatically and via N–H ··· O and N–H ··· F hydrogen bonds.

Acknowledgments

Project supported by the National Natural Science Foundation of China (No. 20871078) and the Natural Science Foundation of Shaanxi Province of China (No. SJ08B01).

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