A new open-framework fluorinated gallium phosphate with large 18-ring channels (MIL-31)
Abstract
A new open-framework fluorinated gallium phosphate (MIL-31) containing the Ga9(PO4)9(H2O)(OH)(OH,F)4 5− anion was hydrothermally synthesized by using long alkyl chain diamines (C9 and C10) as structure-directing agents; its crystal structure is built up from hexameric units and exhibits large one-dimensional hexagonal channels delimited by 18-rings.