自发解离因自组织性自我补充性 (III) 复合物与含有三种伊米达组的三脚类型联结体的奇拉性自我补充性 (III) 复合物引起的自发解离
Ikuko Katsuki1, Yuri Motoda, Yukinari Sunatsuki
1Department of Chemistry, Faculty of Science, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan.
Journal of the American Chemical Society
|January 24, 2002
概括
这项研究证明了achiral复合体的转化为 chiral 2D 层,并最终变成凝聚物. 这些性合金复合物自组装成同性层,导致自发分离和凝聚物形成.
科学领域:
- 协调化学 协调化学
- 超分子化学 超分子化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 形金属复合体是不对称合成和材料科学中的关键构建块.
- 控制性分子的自我组装成有序结构仍然是一个重大挑战.
- 了解分子结构,pH值和晶体包装之间的关系是设计奇拉材料的关键.
研究的目的:
- 为了合成和表征 (III) 复合物与状三脚类型连接体.
- 研究这些复合物的pH依赖的结晶行为和结构过渡.
- 探索 homochiral 二维 (2D) 层和集群结构的形成.
主要方法:
- 合成 (III) 复合物与含有阿奇拉尔伊米达的三脚体连接物.
- 单晶X射线衍射分析以确定不同pH值的晶体结构.
- 循环二重化 (CD) 光谱检测,以确认等离子体形式和自发分辨率.
主要成果:
- 亚希拉尔 (III) 复合物 ([Co ((H3L6) ]3+和[Co ((H3L7) ]3+) 被合成并结晶.
- 完全脱质复合物形成了与共存的反体一起存在的联网.
- 半质子化物种充当了自我补充的构建块,通过伊米达-伊米达酸盐键形成了2D的同体化层.
- 酸盐盐产生了带有交替的同体基层的阿基拉晶体,而化盐则形成了带有基拉通道的凝聚体.
结论:
- (III) 复合物的pH控制的自我组装可以导致 homochiral 2D 层的形成.
- 这些层可以通过自发分离进一步组织成无状结构或状集群.
- 这项研究展示了从无的前体到的凝聚物材料的逐步进展.
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