Kubono Koji, Synmyouzu Teruo, Goto Kenta, Tsujioka Tsuyoshi, Tani Keita
Acta Crystallogr Sect E Struct Rep Online. 2011 Aug 1;67(Pt 8):o2194. doi: 10.1107/S1600536811029539. Epub 2011 Jul 30.
The title compound, C(43)H(32)F(6)N(2)S(2), is a new symmetrical photochromic diaryl-ethene derivative with 9-ethyl-carbazol-3-yl substituents. The mol-ecule adopts a photoactive anti-parallel conformation [Irie (2000). Chem. Rev.100, 1685-1716; Kobatake et al. (2002). Chem. Commun. pp. 2804-2805], with a dihedral angle between the mean planes of the two thio-phene rings of 56.23 (6)°. The distance between the two reactive C atoms is 3.497 (3) Å. In the crystal, two mol-ecules are associated through a pair of C-H⋯F inter-molecular hydrogen bonds, forming a centrosymmetric dimer. Dimers are linked by weak π-π inter-actions [centroid-centroid distance = 3.8872 (13) Å], forming chains along the c axis.
标题化合物C(43)H(32)F(6)N(2)S(2)是一种新型的具有9-乙基咔唑-3-基取代基的对称光致变色二芳基乙烯衍生物。分子采取光活性反平行构象[入江（2000年）。《化学评论》100，1685 - 1716；小畑等（2002年）。《化学通讯》，第2804 - 2805页]，两个噻吩环平均平面之间的二面角为56.23 (6)°。两个反应性C原子之间的距离为3.497 (3) Å。在晶体中，两个分子通过一对C-H⋯F分子间氢键缔合，形成一个中心对称二聚体。二聚体通过弱π-π相互作用相连[质心-质心距离 = 3.8872 (13) Å]，沿c轴形成链状结构。
