CRYSTAL-STRUCTURE OF FEALPO5

Iron aluminium phosphate, FeAlPO5, is monoclinic with space group P2(1 )/c, a = 7.141(3) angstrom, b = 10.549(4) angstrom, c = 5.493(3) angst rom, beta = 98.19(9)-degrees, Z = 4 and D(calc.) = 3.14 g/cm3. Single crystals were prepared synthetically. The structure was refined to R(u nweighted) = 0.056 and R(weighted) = 0.039 using 1240 non-equivalent o bserved reflections. The structure contains Fe2+ in fivefold coordinat ion by oxygen in the form of a distorted trigonal bipyramid.