...
首页> 外文期刊>Acta Crystallographica, Section B. Structural Science >Halogen...halogen interactions in pressure-frozen ortho- and meta-dichlorobenzene isomers.
【24h】

Halogen...halogen interactions in pressure-frozen ortho- and meta-dichlorobenzene isomers.

机译:压力冷冻的邻二氯和间二氯苯异构体中的卤素...卤素相互作用。

获取原文
获取原文并翻译 | 示例
           

摘要

Isomers 1,2-dichlorobenzene (o-DCB) and 1,3-dichlorobenzene (m-DCB) were high-pressure frozen in-situ in a Merrill-Bassett diamond-anvil cell and their structures determined at room temperature and at 0.18 (5) GPa for o-DCB, and 0.17 (5) GPa for m-DCB by single-crystal X-ray diffraction. The patterns of halogen...halogen intermolecular interactions in these structures can be considered to be the main cohesive forces responsible for the molecular arrangements in these crystals. The molecular packing of dichlorobenzene isomers, including three polymorphs of 1,4-dichlorobenzene (p-DCB), have been compared and relations between their molecular symmetry, packing arrangements, intermolecular interactions and melting points discussed. The topology of the crystal packing in dichlorobenzene isomers results from the interplay of the molecular shape, steric hindrances and intermolecular interactions. The non-planar arrangement of the dichlorobenzene molecules in the crystal structures can be justified by the distributions of the electrostatic potential on molecular surfaces, which determines electrostatic intermolecular interactions.
机译:将异构体1,2-二氯苯(o-DCB)和1,3-二氯苯(m-DCB)在Merrill-Bassett金刚石-砧室中高压原位冷冻,并在室温和0.18下测定其结构( 5)通过单晶X射线衍射测得的o-DCB的GPa和m-DCB的0.17(5)GPa。在这些结构中的卤素...卤素分子间相互作用的模式可以被认为是负责这些晶体中分子排列的主要内聚力。比较了包括1,4-二氯苯(p-DCB)的三种多晶型物在内的二氯苯异构体的分子堆积,并讨论了它们的分子对称性,堆积排列,分子间相互作用和熔点之间的关系。二氯苯异构体中晶体堆积的拓扑结构是由于分子形状,位阻和分子间相互作用的相互作用。二氯苯分子在晶体结构中的非平面排列可以通过确定分子间静电相互作用的分子表面上的静电势分布来证明。

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