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Functional Chemistry of Guest-responsive Nano Space Created by Coordination Polymers

配位聚合物创建的客体响应纳米空间的功能化学

基本信息

批准号：
13440195
负责人：
KITAGAWA Susumu
金额：
$ 8.26万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

项目摘要

The advent of robust coordination polymer frameworks demonstrated that solid coordination compounds were acquiring an important position in porous materials and expanding materials-directed coordination chemistry.However, this sort of compounds are considered to be static materials.If we take advantages of coordination polymers, we could provide dynamic materials with flexible frameworks, which are so-called 3rd generation compound. In this manuscript we focus on a pillared-layer motif relevant for this sort of frameworks, which create not only a channel size and shape but also a chemical functionality simply by modifying the pillar module.In this manuscript, we succeeded in designing and realizing a new pillared-layer type coordination polymer.1) The obtained compound is rationally synthesized by using a pillared layer framework. By taking advantages of the framework, we succeeded in creating a hydrogen bonding channel with 1,2-dipyridylglycoI (dpyg), whose interaction is used only fo … More r guests having hydrogen bonding capability.This type of framework is very fewCoordination polymers with two-dimensional frameworks with a double-edged axe-shaped motif have also been synthesized from reactions of cobalt(II) thiocyanate with N-(3-pyridy) isonicotinamide (3-pia) or N-(3-pyridyl)nicotinamide (3-pna). Crystal-to-crystal transformation accompanying inclusion of guest molecules by dynamically switching amide groups in the structure has been found.2) This novel network exhibits a crystal to crystal transformation under guest vapor/reduced atmosphere.3) What is most interesting is "finding of hysteretic sorption properties" for water or methanol vapor. The framework conversion from the apohost to adsorbed one is driven by hydrogen bonding interaction with the guests, indicating that the framework responds to a specific guest molecule and changes its microcavities into those well-suited for the shape and/or affinity of the guest molecule. This unique properties opened up a new dimension to materials-directed coordination chemistry. Less

固体配位化合物在多孔材料中的地位日益重要，拓展了材料定向配位化学的研究领域，但这类化合物通常被认为是静态材料，如果利用配位聚合物的优势，可以提供具有柔性骨架的动态材料，即所谓的第三代化合物。在这篇文章中，我们重点研究了与这类框架相关的柱撑层结构，它不仅可以通过简单地改变柱模块来创建通道的大小和形状，而且还可以创建化学功能。在这篇文章中，我们成功地设计并实现了一种新的柱撑层型配位聚合物。1）通过使用柱撑层框架来合理地合成所获得的化合物。通过利用该框架的优势，我们成功地与1，2-dipyridylglycoI（dpyg）建立了氢键通道，其相互作用仅用于 ...更多信息 2硫氰酸钴（II）与N-（3-吡啶基）异烟酰胺（3-pia）或N-（3-吡啶基）烟酰胺（3-pna）反应，也合成了具有双刃斧形结构的二维配位聚合物。通过动态切换酰胺基团的结构中的客体分子的内含物已被发现的晶体到晶体的转变。2）这种新的网络表现出晶体到晶体的转变下的客体蒸汽/还原气氛。3）什么是最有趣的是“滞后吸附性能的发现”的水或甲醇蒸汽。从离体吸附的一个框架转换驱动的氢键相互作用的客人，表明框架响应于特定的客人分子，并改变其微腔成那些非常适合的形状和/或亲和力的客人分子。这种独特的性质为材料定向配位化学开辟了一个新的维度。少