...
首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure and Hirshfeld surface analysis of 1,2-bis­(2′,6′-diisoprop­oxy-[2,3′-bipyridin]-6-yl)benzene
【24h】

Crystal structure and Hirshfeld surface analysis of 1,2-bis­(2′,6′-diisoprop­oxy-[2,3′-bipyridin]-6-yl)benzene

机译:1,2-双(2',6'-二异丙氧基-[2,3'-联吡啶] -6-基)苯的晶体结构和Hirshfeld表面分析

获取原文
           

摘要

The title mol­ecule, C38H42N4O4, displays a helical structure induced by the combination of the C—C—C—C torsion angle [−10.8 (2)°] between two 2,3′-bipyridyl units attached to the 1,2-positions of the central benzene ring and consecutive connections between five aromatic rings through the meta- and ortho-positions. Intra­molecular C—H⋯π inter­actions between an H atom of a pyridine ring and the centroid of a another pyridine ring contributes to the stabilization of the helical structure. In the crystal, weak C—H⋯π inter­actions link the title mol­ecules into a two-dimensional supra­molecular network extending parallel to the ac plane, in which the mol­ecules with right- and left-handed helical structures are alternately arranged. Hirshfeld surface analysis and two-dimensional fingerprint plots indicate that the mol­ecular packing is dominated by van der Waals inter­actions between neighbouring H atoms, as well as by C—H⋯π inter­actions. One isopropoxyl group is disordered over two sets of sites [occupancy ratio 0.715 (5):0.285 (5)].
机译:标题分子C38H42N4O4显示出一个螺旋结构,该结构由连接到1,2-位的两个2,3'-联吡啶基单元之间的CC CC扭转角[-10.8(2)°]组合而成中心苯环的结构以及五个芳香环之间通过间位和邻位的连续连接。吡啶环的H原子与另一个吡啶环的质心之间的分子内CHHπ相互作用有助于螺旋结构的稳定。在晶体中,弱CH-H⋯π相互作用将标题分子链接到平行于ac平面延伸的二维超分子网络,其中具有右旋和左旋螺旋结构的分子交替排列。 Hirshfeld表面分析和二维指纹图谱表明,分子堆积是由相邻H原子之间的范德华相互作用以及C-H⋯π相互作用决定的。一个异丙氧基基团在两组位点上无序[占用比0.715(5):0.285(5)]。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号