The crystal and molecular structures of 4-N-morpholino-7-phenyl-1,3-isobenz
ofurandione have been determined by X-my diffraction analysis (Nicolet R3m
automated diffractometer, MoKalpha radiation, graphite monochromator, theta
/2 theta scan mode). It is found that the compound crystallizes in the orth
orhombic system, space group Pbca. The unit cell parameters are as follows:
a = 7.773(2) Angstrom, b = 14.652(3) Angstrom, c = 25.614(5) Angstrom, and
Z = 8. The structure is solved by the direct method and refined to R1 = 0.
0504 [I > 2 sigma(I)]. The conformational and geometric characteristics of
the studied compound and the molecular packing in the crystal are discussed
. (C) 2000 MAIK "Nauka/Interperiodica".