Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
Nat Chem. 2009 Dec;1(9):695-704. doi: 10.1038/nchem.444. Epub 2009 Nov 23.
The field of host-guest complexation is intensely attractive from diverse perspectives, including materials science, chemistry and biology. The uptake and encapsulation of guest species by host frameworks are being investigated for a wide variety of purposes, including separation and storage using zeolites, and recognition and sensing by enzymes in solution. Here we focus on the concept of the cooperative integration of 'softness' and 'regularity'. Recent developments on porous coordination polymers (or metal-organic frameworks) have provided the inherent properties that combine these features. Such soft porous crystals exhibit dynamic frameworks that are able to respond to external stimuli such as light, electric fields or the presence of particular species, but they are also crystalline and can change their channels reversibly while retaining high regularity. We discuss the relationship between the structures and properties of these materials in view of their practical applications.
主-客体络合作用领域从多个角度来看都极具吸引力，包括材料科学、化学和生物学。主体框架对客体物种的吸收和封装正被广泛研究，包括使用沸石进行分离和储存，以及在溶液中通过酶进行识别和传感。在这里，我们关注的是“柔软性”和“规则性”协同结合的概念。最近在多孔配位聚合物（或金属-有机骨架）方面的发展提供了具有这些特性的固有属性。这些柔软多孔的晶体具有动态框架，能够对外界刺激做出响应，例如光、电场或特定物种的存在，但它们也是结晶的，并且在保持高度规则性的同时能够可逆地改变其通道。我们根据这些材料的实际应用讨论了它们的结构和性能之间的关系。
