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 control in alkyl ether-functionalized pillared-layered MOFs by a Cu/Zn mixed metal approach
作者:Andreas Schneemann、Robin Rudolf、Samuel J. Baxter、Pia Vervoorts、Inke Hante、Kira Khaletskaya、Sebastian Henke、Gregor Kieslich、Roland A. Fischer
DOI:10.1039/c9dt01105f
日期:——
With a Cu2+/Zn2+ mixed metal approach, the CO2 and thermally induced phase transition of flexible pillared-layered MOFs can be tuned.
Gated Channels in a Honeycomb-like Zinc−Dicarboxylate−Bipyridine Framework with Flexible Alkyl Ether Side Chains
作者:Sebastian Henke、Roland A. Fischer
DOI:10.1021/ja109317e
日期:2011.2.23
Covalent functionalization of 1,4-benzenedicarboxylate (bdc) with methoxyethoxy groups induces conformational freedom in this molecule. Applying these 2,5-disubstituted bdc derivatives in metal organic framework synthesis together with 4,4'-bipyridine as coligand yields novel honeycomb-like structures. The cylindrical channels of these materials are populated with flexible groups, which act as molecular gates for guest molecules. This allows highly selective sorption of CO2 over N-2 and CH4.