（E）-9-（4-氯苯乙烯基）-3,4,5,6,7,9-六氢-2H-占吨-1,8-二酮
(E)-9-(4-Chloro-styr-yl)-3,4,5,6,7,9-hexa-hydro-2H-xanthene-1,8-dione.
作者信息
Lee Jae Kyun, Pae Ae Nim, Cho Yong Seo, Cha Joo Hwan
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):o501. doi: 10.1107/S1600536812002139. Epub 2012 Jan 21.
Abstract
In the title compound, C(21)H(19)ClO(3), the two cyclo-hexenone rings adopt half-chair conformations, whereas the pyran ring adopts a boat conformation. The 4-chloro-phenyl ring is almost perpendicular to the plane through the four C atoms of the pyran ring [dihedral angle = 87.97 (6)°]. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into a chain parallel to the a-axis.
摘要
在标题化合物C(21)H(19)ClO(3)中，两个环己烯酮环呈半椅式构象，而吡喃环呈船式构象。4-氯苯基环几乎垂直于通过吡喃环四个C原子的平面[二面角 = 87.97 (6)°]。在晶体中，弱的C-H⋯O氢键将分子连接成平行于a轴的链。
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