Kaewmanee Narissara, Chanawanno Kullapa, Chantrapromma Suchada, Fun Hoong-Kun
Acta Crystallogr Sect E Struct Rep Online. 2010 Sep 25;66(Pt 10):o2639-40. doi: 10.1107/S1600536810037505.
In the title compound, C(18)H(23)N(2) (+)·I(-), the cation exists in the E configuration with respect to the ethenyl C=C bond. The pyridinium and benzene rings are nearly coplanar, making a dihedral angle of 4.63 (7)°. The two ethyl groups of the diethyl-amino substituent point in opposite directions with respect to the benzene plane. In the crystal, the cation and the iodide anion are linked by a weak C-H⋯I inter-action. The cations are stacked in an anti-parallel manner along the a axis by a π-π inter-action with a centroid-centroid distance of 3.5262 (9) Å. The crystal structure is further stabilized by C-H⋯π inter-actions.
在标题化合物C(18)H(23)N(2) (+)·I(-)中，阳离子相对于乙烯基C=C键以E构型存在。吡啶鎓环和苯环几乎共面，二面角为4.63 (7)°。二乙氨基取代基的两个乙基相对于苯平面指向相反方向。在晶体中，阳离子和碘离子通过弱的C-H⋯I相互作用相连。阳离子通过π-π相互作用沿a轴以反平行方式堆积，质心-质心距离为3.5262 (9) Å。晶体结构通过C-H⋯π相互作用进一步稳定。
