Directing the Breathing Behavior of Pillared-Layered Metal–Organic Frameworks via a Systematic Library of Functionalized Linkers Bearing Flexible Substituents
作者:Sebastian Henke、Andreas Schneemann、Annika Wütscher、Roland A. Fischer
DOI:10.1021/ja302991b
日期:2012.6.6
Implementation of two differently functionalized linkers in varying ratios yields multicomponent single-phased [Zn(2)(fu-bdc')(2x)(fu-bdc″)(2-2x)(dabco)](n) MOFs (0 < x < 1) of increased inherent complexity, which feature a non-linear dependence of their gassorptionproperties on the applied ratio of components. Hence, the responsive behavior of such pillared-layered MOFs can be extensively tuned
Influence of Co-adsorbates on CO<sub>2</sub> induced phase transition in functionalized pillared-layered metal–organic frameworks
作者:Andreas Schneemann、Yukiko Takahashi、Robin Rudolf、Shin-ichiro Noro、Roland A. Fischer
DOI:10.1039/c6ta03266d
日期:——
series of flexible pillared-layered MOFs of the type [Zn2(fu-bdc)2(dabco)]n bearing flexible sidechains and analyze the gas adsorption behavior when the material is exposed to mixtures of CO2 with other adsorptives, including N2, CH4, C2H6 and C3H8, to evaluate the influence of the co-adsorbate on the sorption selectivity and phasetransition under these conditions.
大多数关于柔性MOF的研究表明,框架的良好分离特性完全是基于单组分等温线以及从中得出的结论。但是,没有考虑许多因素,特别是在骨架打开之后,孔隙空间的变化会对实际分离问题中存在的第二种气体的吸附产生明显的影响,这种分离问题不会引起材料的相变。在本研究中,我们重点研究一系列带有挠性侧链的[Zn 2(fu- bdc)2(dabco)] n型挠性柱状分层MOF,并分析了该材料暴露于以下物质的混合物中时的气体吸附行为: CO 2与其他吸附剂,包括N 2,CH参见图4,C 2 H 6和C 3 H 8,以评估在这些条件下助吸附剂对吸附选择性和相变的影响。
Flexibility and Sorption Selectivity in Rigid Metal-Organic Frameworks: The Impact of Ether-Functionalised Linkers
作者:Sebastian Henke、Rochus Schmid、Jan-Dierk Grunwaldt、Roland A. Fischer
DOI:10.1002/chem.201002341
日期:2010.12.27
The functionalisation of well‐known rigidmetal–organicframeworks (namely, [Zn4O(bdc)3]n, MOF‐5, IRMOF‐1 and [Zn2(bdc)2(dabco)]n; bdc=1,4‐benzene dicarboxylate, dabco=diazabicyclo[2.2.2]octane) with additional alkyl ether groups of the type ‐O‐(CH2)n‐O‐CH3 (n = 2–4) initiates unexpected structural flexibility, as well as high sorptionselectivity towards CO2 over N2 and CH4 in the porous materials