Powder diffraction data for 2-aminophenalenone at 295 K (P2(1)/n, Z=4) are
given, strong lines: 7.54/X, 7.26/9, 3.34/3, The cell parameters found are
a=3.7213(3), b=16.550(2), c=15.095(2) Angstrom, beta=92.61(2)degrees. The c
rystal structure was determined using powder data and refined giving R-b=0.
089. Disordered molecules form stacks along [100] with interplanar spacing
of 3.48 Angstrom. (C) 1999 International Centre for Diffraction Data. [S088
5-7156(98)00902-6].