一个Pd24怀孕的分子纳米球:通过精确地绘制协调位置的自我模板恒星
Imtiyaz Ahmad Bhat1, Dipak Samanta1, Partha Sarathi Mukherjee1
1Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
Journal of the American Chemical Society
|July 11, 2015
概括
研究人员使用(II) 离子和新的金字素连接体创建了一个新型的M24L24分子纳米球. 这种结构具有一个内在的"婴儿球"在一个更大的"母球",展示精确的自组装控制.
科学领域:
- 超分子化学 超分子化学
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
背景情况:
- 胺联体通常由于协调不良而形成简单的单核复合体.
- 构建更大,可预测的超分子结构,如分子球,需要强大的连接体设计.
研究的目的:
- 设计和合成一个胺桥接的分子纳米球.
- 通过一种新型的三四胺-5-) 胺连接体,研究 (II) 离子的自我组装.
- 为了证明一个较小的超分子单元在一个较大的单元中得到控制的封装.
主要方法:
- (II) 离子与三 (Tris) 4 (pyrimidin) 5 (yl) ) 胺的自组合.
- 由此产生的M24L24复合体的结构特征.
- 配体交换反应形成一个较小的M12L24球.
主要成果:
- 形成一个独特的M24L24分子纳米球 (2),其中包括一个Pd12"婴儿球",由金胺连接体桥接,由一个外部Pd12"母球"支.
- 内部婴儿球不能在没有外部母球的情况下形成,强调了几何约束的作用.
- 成功地将M24L24纳米球转换成一个较小的M12L24球 (3) 使用二氧化连接体.
结论:
- 展示了一种新的自我组装策略,以创建一个具有封装内部结构的"怀孕"分子纳米球.
- 建立了一种通过连接体设计和几何约束来控制超分子结构的方法.
- 通过连接物交换展示了复杂纳米结构的轻松转化.
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