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首页> 外文期刊>Crystal growth & design >Polymorphism and Host-Guest Chemistry of a Phenylpyridine-Functionalized Zwitterion
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Polymorphism and Host-Guest Chemistry of a Phenylpyridine-Functionalized Zwitterion

机译：多态性和寄主式化学对苯基吡啶官能化的两性

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摘要

The supramolecular chemistry of a phenylpyridine-functionalized zwitterion, formed by a simple reaction between acetylenedicarboxylic acid and 4-phenylpyridine, has been investigated. Two polymorphs and two solvates have been identified in this study, and the particular conditions required to obtain these, as well as two previously reported forms of this zwitterion, have been investigated. In addition, it was found that conversion between many of the forms is possible by immersion in solvents and, in some cases, is reversible. The hydrated form of the zwitterion and one of the polymorphs (1 alpha) appear to be the two most favorable structures, as all known forms can be converted to either of these two structures. The hydrated form of the zwitterion can also be converted to either of the two polymorphs, and both of these conversions are reversible. Solvent was identified as playing a key role in the structures obtained and conversions between them.
机译：研究了通过乙酰二羧酸和4-苯基吡啶之间的简单反应形成的苯基吡啶官能化两性离子的超分子化学。 已经在本研究中鉴定了两种多晶型物和两种溶剂化物，并研究了获得这些所需的特定条件，以及两种先前报告的这种两种形式。 此外，发现许多形式之间的转化率可以浸入溶剂中，并且在某些情况下是可逆的。 两性离子和其中一种多晶型（1α）的水合形式似乎是两个最有利的结构，因为所有已知的形式都可以转化为这两个结构中的任一个。 枯包的水合形式也可以转化为两种多晶型物中的任一种，这两种转化都是可逆的。 鉴定溶剂作为在获得的结构中发挥关键作用和它们之间的转换。

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  • 来源
    《Crystal growth & design》 |2020年第3期|共9页
  • 作者

    Lombard Jean; Loots Leigh; Haynes Delia A.; le Roex Tanya;

  • 作者单位

    Stellenbosch Univ Dept Chem &

    Polymer Sci ZA-7602 Matieland South Africa;

    Stellenbosch Univ Dept Chem &

    Polymer Sci ZA-7602 Matieland South Africa;

    Stellenbosch Univ Dept Chem &

    Polymer Sci ZA-7602 Matieland South Africa;

    Stellenbosch Univ Dept Chem &

    Polymer Sci ZA-7602 Matieland South Africa;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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