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首页> 外文期刊>Crystal growth & design >Plastically Deformable and Exfoliating Molecular Crystals of a 2-D Coordination Polymer and Its Ligand
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Plastically Deformable and Exfoliating Molecular Crystals of a 2-D Coordination Polymer and Its Ligand

机译：塑性变形和剥离2-D配位聚合物的分子晶体及其配体

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摘要

4-n-Hexyloxybenzoic acid and the corresponding potassium salt were synthesized and crystallized, and their force-induced mechanical response was studied. 4-n-Hexyloxybenzoic acid is crystallized as large single crystals of the reported monoclinic polymorph, whereas, its potassium salt forms a 2D polymeric structure. When a localized mechanical force is applied, crystals of both materials undergo plastic deformation to the extent that they can be folded to resemble characters of the English alphabet. With few cycles of bending and unbending, the crystals can be exfoliated, and crystalline layers can be separated. In both structures, van der Waals interactions of the hexyl chains contribute toward the formation of slip plane parallel to the wider face of the crystals, which is necessary for their plastic deformability. Reported crystal structures of 4-n-alkoxybenzoic acids with alkyl chain length ranging from C1 to C10 and their inorganic salts were analyzed, and it was found that packing of alkyl chains suitable for the formation of a slip system prevails in some of these crystal structures.
机译：合成4-正己氧基苯甲酸和相应的钾盐并结晶，研究其力诱导的机械响应。将4-正己氧基苯甲酸结晶，如报道的单斜晶型多晶型物的大单晶，而其钾盐形成2D聚合物结构。当施加局部机械力时，两种材料的晶体在可以折叠以类似于英文字母的程度上进行塑性变形。随着弯曲和不弯曲的几个循环，可以剥离晶体，并且可以分离结晶层。在两个结构中，己基链的范德瓦尔斯相互作用朝向平行于晶体的较宽面部形成滑移平面，这对于它们的塑性变形性是必要的。分析了从C1至C10的烷基链长的4- N-烷氧基苯甲酸的晶体结构分析，并发现它们在一些这些晶体结构中占据了适用于形成滑动系统的烷基链填充。

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  • 来源
    《Crystal growth & design》 |2019年第11期|共6页
  • 作者

    Nath Naba K.; Gupta Poonam; Hazarika Pragyan J.; Deka Namrata; Mukherjee Anusua; Dutta Gitish K.;

  • 作者单位

    Natl Inst Technol Meghalaya Dept Chem Shillong Meghalaya India;

    Natl Inst Technol Meghalaya Dept Chem Shillong Meghalaya India;

    Natl Inst Technol Meghalaya Dept Chem Shillong Meghalaya India;

    Natl Inst Technol Meghalaya Dept Chem Shillong Meghalaya India;

    Natl Inst Technol Meghalaya Dept Chem Shillong Meghalaya India;

    Natl Inst Technol Meghalaya Dept Chem Shillong Meghalaya India;

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  • 正文语种 eng
  • 中图分类 晶体学;
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