T. Kolev et al., Triclinic form of 2-{5,5-dimethyl-3-[2-(2,4,6-trimethoxyphenyl)vinyl]cyclohex-2-enylidene}malononitrile, ACT CRYST E, 57, 2001, pp. o966-o967
On slow evaporation of an ethylacetate solution, the title compound, C22H24
N2O3, (I), crystallizes in two crystalline forms differing in colour, size
and shape. For the structural data on the monoclinic violet form, as well a
s comment on the differences between the two structures and the details of
preparation, see Kolev et al. [Acta Cryst. (2001). E57, o964-o965]. This pa
per reports the structural results of the red triclinic modification.