晶体工程用于使用素-素和CH/pi相互作用作为弱分子间相互作用的muconic Ester的高化学聚合
Akikazu Matsumoto1, Toshihiro Tanaka, Takashi Tsubouchi
1PRESTO, Japan Science and Technology Corporation (JST), Conversion and Control by Advanced Chemistry, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan. matsumoto@a-chem.eng.osaka-cu.ac.jp
Journal of the American Chemical Society
|July 26, 2002
概括
使用素-素接触和CH/pi相互作用的基衍生物的晶体工程使得拓化学聚合成为可能. 单体包装设计对于通过固态光反应制造立体正规聚合物至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
- 聚合物化学 聚合物化学
背景情况:
- 晶体工程利用非共价相互作用来控制固态结构.
- 拓化学聚合提供了一条从晶体单体形成立体规律聚合物的途径.
- 粘菌衍生物是1,3-二烯二碳酸单体,具有聚合的潜力.
研究的目的:
- 设计用于受控的拓化学聚合物的粘乙烯衍生物.
- 研究素-素接触和CH/pi相互作用在晶体包装中的作用.
- 为了阐明二 (Z,Z) - 酸盐的固态光反应路径.
主要方法:
- 替代 (Z,Z) -和 (E,E) -酸盐的晶体结构分析.
- 在受控条件下的固态光反应研究.
- 详细检查了分子间相互作用 (素-素,CH/pi).
主要成果:
- 在基上素替代诱导了高化学聚合,产生立体规律的聚合物.
- 在类似的条件下,未被替换的衍生品以同质化形式变为E,E形式.
- 具有特定堆叠距离 (4.9-5.2 Å) 的柱状晶体包装对于聚合是必不可少的,通过素-素和CH / pi相互作用稳定.
结论:
- 粘乙烯衍生物的分子设计,侧重于通过素-素和CH / pi相互作用的单体包装,对于实现高化学聚合是至关重要的.
- 对晶体结构和分子间力量的精确控制使得立体正规聚合物的合成成为可能.
- 这种方法为通过受控的固态反应设计功能性材料提供了一条途径.
相关概念视频
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An alkene, such as propene, reacts with bromine in the presence of water to yield a halohydrin. Halohydrins contain a halogen and a hydroxyl group attached to adjacent carbons. When the halogen is bromine, it is called a bromohydrin, while a chlorohydrin has chlorine as the halogen.
01:20Carboxylic Acids to Esters: Acid-Catalyzed (Fischer) Esterification Overview
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01:12Acid Halides to Esters: Alcoholysis
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01:13Esters to Carboxylic Acids: Acid-Catalyzed Hydrolysis
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01:14Alkylation of β-Diester Enolates: Malonic Ester Synthesis
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01:13Carboxylic Acids to Esters: Acid-Catalyzed (Fischer) Esterification Mechanism
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