首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of 5-(1,3-di­thian-2-yl)-2H-1,3-benzodioxole
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Crystal structure of 5-(1,3-di­thian-2-yl)-2H-1,3-benzodioxole

机译:5-(1,3-二噻二-2-基)-2H-1,3-苯并二恶唑的晶体结构

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In the title compound, C11H12O2S2, two independent but virtually superimposable mol­ecules, A and B, comprise the asymmetric unit. In each mol­ecule, the 1,3-di­thiane ring has a chair conformation with the 1,4-disposed C atoms being above and below the plane through the remaining four atoms. The substituted benzene ring occupies an equatorial position in each case and forms dihedral angles of 85.62 (9) (mol­ecule A) and 85.69 (8)° (mol­ecule B) with the least-squares plane through the 1,3-di­thiane ring. The difference between the mol­ecules rests in the conformation of the five-membered 1,3-dioxole ring which is an envelope in mol­ecule A (the methyl­ene C atom is the flap) and almost planar in mol­ecule B (r.m.s. deviation = 0.046 Å). In the crystal, mol­ecules of A self-associate into supra­molecular zigzag chains (generated by glide symmetry along the c axis) via methyl­ene C—H⋯π inter­actions. Mol­ecules of B form similar chains. The chains pack with no specific directional inter­molecular inter­actions between them.
机译:在标题化合物C11H12O2S2中,两个独立但实际上可重叠的分子A和B组成不对称单元。在每个分子中,1,3-二硫杂环具有椅构象,其中1,4-排列的C原子在其余四个原子的平面上方和下方。取代的苯环在每种情况下都处于赤道位置,并形成最小二乘平面通过1,3-二噻吩环的二面角为85.62(9)(分子A)和85.69(8)°(分子B)。分子之间的差异在于五元1,3-二氧杂环丁烯环的构象,该环是分子A中的包膜(亚甲基C原子是皮瓣),分子B中的分子几乎是平面的(r.m.s.偏差= 0.046Å)。在晶体中,A分子通过亚甲基C-H⋯π相互作用自缔合为超分子之字形链(沿c轴以滑行对称方式生成)。 B的分子形成相似的链。链条之间没有特定的方向性分子间相互作用。

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