Key indicators Single-crystal X-ray study T = 120 K Mean '(C±C) = 0.003 A Ê R factor = 0.067 wR factor = 0.165 Data-to-parameter ratio = 12.6 For details of how these key indicators were automatically derived from the article, see Acta Cryst. (2004). E60, o892±o893 Dmitry V. Albov et al. C 12 H 17 NO o893 organic papers Figure 1 ORTEP 3 (Farrugia, 1997) plot of the molecule of (2), with the atom numbering scheme. Displacement ellipsoids are drawn at the 50% probability level.