素键对二碳酸衍生物的晶体结构的影响
Artyom A Osipov1, Sergey A Nayfert1, Sergey A Sobalev2
1Department of Materials Science and Physical Chemistry of Materials, South Ural State University, 76, Lenin prospekt, Chelyabinsk, Chelyabinsk Oblast 454080, Russian Federation.
概括
这项研究报告了新型特和双二碳酸盐. 酸衍生物由于素结合而表现出独特的非平面结构,破坏了分层包装.
科学领域:
- 晶体工程公司 晶体工程
- 超分子化学 超分子化学
- 有机合成 有机合成
背景情况:
- 特和双二碳酸盐是材料科学中的多功能构建块.
- 了解结构-属性关系对于设计新的功能材料至关重要.
研究的目的:
- 合成和表征新的特和双二碳酸衍生物.
- 研究和盐形成对分子和晶体结构的影响.
- 探索素结合在决定超分子组合中的作用.
主要方法:
- 单晶X射线衍射分析.
- 合成二甲基和盐的特和双二碳酸盐.
- 分子构造和分子间相互作用的分析.
主要成果:
- 确定了四种化合物的结构,包括二甲基四二氧酸盐 (1),其类相应物 (2),四二氧酸盐 (3) 和二甲基二甲基四二氧酸盐 (4).
- 化合物1,3,和4呈现平面的环和分层的晶体结构.
- 化合物2中的化诱导了由于固体排斥而导致中央环 (64°) 的显著旋转,通过素结合破坏了分层包装.
- 盐 (3) 显示了一个离子结构,在离子周围有一个扭曲的正方形反 prism 协调多面体,保持了分层的 dianion 包装.
- 化合物3表现出高热稳定性,最高可达500°C.
结论:
- 这项研究强调了素结合对酸二碳酸的固态结构的显著影响.
- 层层结构的形成对分子替代剂和晶体包装力很敏感.
- 盐 (3) 是一种热稳定的材料,在晶体工程中具有潜在的应用.
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