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Synthesis and crystal structure of a new gallium phosphate with 14-ring channels

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Author(s)

Russell Edward Morris, SJ Weigel, AK Cheetham, GD Stucky

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Abstract

The synthesis and crystal structure of a new 14-membered ring gallium oxyfluorophosphate are described: DIPYR-GaPO: Ga7P6O28F3C10N2H16, M-r=1343.1, space group P (1) over bar, a=12.000(3) Angstrom, b=13.895(4) Angstrom, c=10.280(4) Angstrom, alpha=101.09(3)degrees, beta= 100.91(2)degrees, gamma=106.41(2)degrees, D-c=2.83 g cm(-3), F(000)=1297, R=2.89%, R-w=3.63%. The product was obtained by hydrothermal synthesis at 170 degrees C in a reaction using two amines as structure-directing agents in the HF-Ga2O3-P2O5 system: pyridine and benzylviologen dichloride. The benzylviologen dichloride decomposed during the reaction to form 4,4'-dipyridyl, which was found in the 14-ring channels together with pyridine. Intraframework hydrogen bonding appears to play an important role in determining the shape of the pores.

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Details

Original languageEnglish
Pages (from-to)1607-1611
Number of pages5
JournalJournal of Materials Chemistry
Volume8
Publication statusPublished - Jul 1998

    Research areas

  • MOLECULAR-SIEVE, ZEOLITE, VPI-5, RINGS

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