Figure 2
Perspective ORTEP-3 (Farrugia, 1997) drawing of the pentacene molecules at (a) 293 K and (b) 90 K, showing the non-H atom-numbering scheme. All C atoms are represented by displacement ellipsoids at the 50% probability level and the H atoms are drawn with arbitrary radii. Both molecules have a crystallographically imposed centre of inversion: C1—C11i at (½,½,0) and C12—C22ii at (0,0,0) [symmetry codes: (i) 1 − x, 1 − y, −z; (ii) −x, −y, −z]. |