Creation of kinetically-controlled supramolecular systems based on coordination chemistry

IF 1.7 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Journal of Inclusion Phenomena and Macrocyclic Chemistry Pub Date : 2023-06-14 DOI:10.1007/s10847-023-01190-5
Yoko Sakata
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Abstract

In biological systems, biomolecules achieve sophisticated functions based on both thermodynamic control and kinetic control. In contrast, in artificial supramolecular systems, molecular recognition behaviors in host–guest systems or self-assembly processes under thermodynamic control have been widely investigated for several decades. Recently, kinetic control of these processes has attracted more interest. This review describes three approaches for the kinetic control of supramolecular systems based on coordination chemistry. The discussion first focuses on the kinetic control of guest uptake of host–guest systems. The guest binding kinetics (i.e., guest uptake/release rate) can be basically controlled by the change in the aperture sizes of the host molecules. The second part provides representative examples of unveiling guest uptake/exchange mechanisms for a variety of supramolecular host–guest systems, which is important for the rational design of host molecules and prediction of their specific functions for future studies. The kinetic control of metal-assisted self-assembly processes is also introduced in the last part. The discussion especially focuses on investigation of the self-assembly pathway, control of the kinetic stability of self-assembled complexes, and the speed tuning of self-assembly processes by modulating the individual metal–ligand exchange rate.

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基于配位化学的动力学控制超分子体系的建立
在生物系统中,生物分子实现了基于热力学控制和动力学控制的复杂功能。相比之下,在人工超分子系统中,在热力学控制下的主客体系统或自组装过程中的分子识别行为已经被广泛研究了几十年。最近,这些过程的动力学控制引起了更多的兴趣。本文综述了基于配位化学的超分子体系动力学控制的三种方法。本文首先讨论了主-客体系统中客体摄取的动力学控制。客体结合动力学(即客体摄取/释放速率)基本上可以通过宿主分子孔径大小的变化来控制。第二部分提供了揭示各种超分子宿主-客体系统的客体摄取/交换机制的代表性例子,这对未来研究宿主分子的合理设计和预测其特定功能具有重要意义。最后介绍了金属辅助自组装过程的动力学控制。讨论的重点是自组装途径的研究,自组装配合物的动力学稳定性的控制,以及通过调节单个金属配体交换率来调节自组装过程的速度。
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来源期刊
Journal of Inclusion Phenomena and Macrocyclic Chemistry
Journal of Inclusion Phenomena and Macrocyclic Chemistry Agricultural and Biological Sciences-Food Science
CiteScore
4.10
自引率
8.70%
发文量
54
期刊介绍: The Journal of Inclusion Phenomena and Macrocyclic Chemistry is the premier interdisciplinary publication reporting on original research into all aspects of host-guest systems. Examples of specific areas of interest are: the preparation and characterization of new hosts and new host-guest systems, especially those involving macrocyclic ligands; crystallographic, spectroscopic, thermodynamic and theoretical studies; applications in chromatography and inclusion polymerization; enzyme modelling; molecular recognition and catalysis by inclusion compounds; intercalates in biological and non-biological systems, cyclodextrin complexes and their applications in the agriculture, flavoring, food and pharmaceutical industries; synthesis, characterization and applications of zeolites. The journal publishes primarily reports of original research and preliminary communications, provided the latter represent a significant advance in the understanding of inclusion science. Critical reviews dealing with recent advances in the field are a periodic feature of the journal.
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