温度控制的可逆变化高度对称的多类型联体的协调模式,以构建协调组件:实验和理论研究
Bo Zheng1, Hao Dong, Junfeng Bai
1State Key Laboratory of Coordination Chemistry and Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing 210093, PR China.
Journal of the American Chemical Society
|May 31, 2008
概括
经过温度控制的反应,从一个混合物中产生了四种不同的复合物. 这些复合体表现出可逆的相互转换,由反应温度和周围溶液控制.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
背景情况:
- 复合物正在为各种应用进行研究.
- 控制金属有机框架的自组装对于材料设计至关重要.
- 了解反应途径是合成新型协调化合物的关键.
研究的目的:
- 为了合成和表征新的复合物.
- 研究反应温度对复合物形成的影响.
- 探索协调复合体的可逆互转换.
主要方法:
- 在不同温度 (5,15,30,50°C) 下合成复合物.
- 四个不同的复合物的特征: [Cd(HC4O4) 2 ((H2O) 4) ] (1), [Cd4 ((C4O4) 4 ((H2O) 16) ]. (H2O) 2 (2), (Cd) 4O4) 2 (3),和 (Cd) 4O4) 2 (4) (H2O) 2 (4) 的情况.
- 通过母液介导的复合体之间的可逆互转换的分析.
主要成果:
- 通过精确控制反应温度,成功合成了四种独特的复合物.
- 复合体的形成 [Cd(HC4O4) 2 ((H2O) 4) ] (1), [Cd4 ((C4O4) 4 ((H2O)) 16]. 已经实现了 (H2O) 2 (2), (Cd) 4O4和 (H2O) 2 (3),以及 (Cd) 4O4和 (H2O) 2 (4).
- 观察到这四个复合体之间的前所未有的可逆转变,取决于温度和溶液条件.
结论:
- 反应温度是指导复合物的自我组装的关键参数.
- 母液在调解合成复合物的可逆性相互转换方面发挥着至关重要的作用.
- 这项研究表明了动态协调复合体形成的新型温度依赖途径.
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