Gate opening behaviour of structurally flexible porous coordination polymers - characterization by combined X-ray diffraction and sorption studies

结构柔性多孔配位聚合物的开门行为 - 通过 X 射线衍射和吸附研究相结合的表征

• 批准号: 270107402
• 负责人: Professor Dr. Roger Gläser
• 金额: --
• 依托单位: Institut für Anorganische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/270107402?language=en
• 关键词: Gate; opening; behaviour; structurally; flexible

Out of the class of porous coordination polymers (metal-organic frameworks, MOFs) some MOFs exhibit so-called gate opening behaviour which is dependent on the degree of loading of the pores with guest molecules. In these structurally flexible materials the crystal structure responds on external stimuli such as differences in presence of certain gases, and therefore they are regarded as promising switchable materials with various potential applications. However, up to now only for a few examples it is known, how their structures change. One aim of this project are detailed investigations of structural changes in order to understand origin and consequences of the gate opening effect. For that purpose a combination of sorption experiments, including pure and mixed gas sorption studies and break through experiments, and structure determination studies will be performed based on X-ray powder diffraction patterns collected at the conditions of the sorption studies. Besides that, it is an central task within the project, to improve the home-built in situ (sorption / X-ray diffraction) sample holder for our laboratory diffractometer in order to extend the experimental possibilities for investigation of structurally flexible materials - independent of access to synchrotron beam lines. The proposed project requires a close cooperation of the involved research groups with their individual expertise in sorption and structural characterization.

在多孔配位聚合物（金属有机框架，MOF）类别中，一些 MOF 表现出所谓的门打开行为，该行为取决于孔中客体分子的负载程度。在这些结构灵活的材料中，晶体结构对外部刺激做出响应，例如某些气体存在的差异，因此它们被认为是具有各种潜在应用的有前途的可切换材料。然而，到目前为止，人们只知道它们的结构如何变化的几个例子。该项目的目标之一是详细调查结构变化，以了解开门效应的起源和后果。为此目的，将根据在吸附研究条件下收集的 X 射线粉末衍射图样进行吸附实验的组合，包括纯气体和混合气体吸附研究和突破性实验以及结构测定研究。除此之外，该项目的核心任务是改进我们实验室衍射仪的自制原位（吸附/X射线衍射）样品架，以扩展结构柔性材料研究的实验可能性 - 独立于访问同步加速器光束线。拟议的项目需要相关研究小组与他们在吸附和结构表征方面的个人专业知识密切合作。

项目成果

Paddle Wheel Based Triazolyl Isophthalate MOFs: Impact of Linker Modification on Crystal Structure and Gas Sorption Properties.

基于桨轮的间苯二甲酸三唑基 MOF：连接基修饰对晶体结构和气体吸附性能的影响。

• DOI: 10.1021/acs.inorgchem.5b02921
• 发表时间: 2016-03-07
• 期刊: Inorganic chemistry
• 影响因子: 4.6
• 作者: M. Kobalz;Jörg Lincke;K. Kobalz;Oliver Erhart;J. Bergmann;Daniel Lässig;M. Lange;J. Möllmer
• 通讯作者: J. Möllmer

Bis(carboxyphenyl)-1,2,4-triazole Based Metal-Organic Frameworks: Impact of Metal Ion Substitution on Adsorption Performance.

• DOI: 10.1021/acs.inorgchem.6b00530
• 发表时间: 2016-06-29
• 期刊: Inorganic chemistry
• 影响因子: 4.6
• 作者: K. Kobalz;M. Kobalz;J. Möllmer;U. Junghans;M. Lange;J. Bergmann;S. Dietrich;M. Wecks;R. Gläser
• 通讯作者: R. Gläser

A Series of Robust Copper-Based Triazolyl Isophthalate MOFs: Impact of Linker Functionalization on Gas Sorption and Catalytic Activity †

一系列坚固的铜基间苯二甲酸三唑基 MOF：连接基功能化对气体吸附和催化活性的影响 –

• DOI: 10.3390/ma10040338
• 发表时间: 2017-03-24
• 期刊: Materials
• 影响因子: 3.4
• 作者: Junghans U;Kobalz M;Erhart O;Preißler H;Lincke J;Möllmer J;Krautscheid H;Gläser R
• 通讯作者: Gläser R