Creation of MOFs with open metal sites by partial replacement of metal ions with different coordination numbers

Abstract

Herein, we developed isostructural metal–organic frameworks (MOFs) [Cu1−xPdx(SiF6)(bpy)2] (bpy: 4,4′-bipyridine) (SIFSIX-1-CuPd-3, -5 and -10) containing open metal sites using a partial metal-replacement approach.

Carbon Dioxide Capture in Metal-Organic Framework

“…Those isostructural MOFs that contain open metal sites need to use a method called partial metal replacement. [25]. There is a series of MOFs that link with Cu(II) and Pd(II) in CO2 capture.…”

“…To talk about SIFSIX-1-Cu-type MOF, except the framework can be retained, octahedral geometry Cu 2+ ions need to be extensively substituted in various ratios with Pd 2+ ions with square planar geometry which is shown in Fig. 2 [25]. This shape of MOF which is SIFSIX-1-Cu-type MOF can have a high CO2 adsorption capacity since it contains open metal sites which means it is based on its structure variation.…”

Progress in adsorption capacity of nanomaterials for carbon dioxide capture: A comparative study

“…The objective of hybrid systems is to increase the density of higher affinity sites in order to promote good molecules and the ultra-microporous structures of the MOFs using simulations. Reproduced with permission from (Heo et al, 2020;Harada et al, 2019;Nandi et al, 2018), respectively. 27…”

Gold-like Thiolate-Protected Ultrasmall Cubic Copper Nanocluster-Based Metal–Organic Framework as a Selective Catalyst for Stepwise Synthesis of Unsymmetric Bistriazole by Click Reaction

“…Metal–organic frameworks (MOFs) are usually formed by the combination of multidendate organic linkers with inorganic units that have shown great promise in the recent few decades. − The choice of spacers, valence states of metal ions, morphology, and particle size to develop MOFs is the most changeling part for this class of materials for multipurpose and selective organic catalysis. , The Cu­(I)-catalyzed azide–alkyne cycloaddition (CuAAC) has the most widely applied toolbox for 1,2,3-triazole linkers and found potential applications in various research fields such as materials science, organic synthesis, medicinal chemistry, and chemical biology. − Currently, bifunctional cross linkers highlight the key challenge in developing chemoselective sequential reactions in a timely and cost-effective manner, while providing broad functional group tolerance. The so-called stepwise click strategy has been an emerging area for the development of chemoselective cross-linking nonidentical nucleosides and DNA/RNA strands (heterodimers) in a two-step method with a large excess of the cross-linking agent.…”

“…15−17 The choice of spacers, valence states of metal ions, morphology, and particle size to develop MOFs is the most changeling part for this class of materials for multipurpose and selective organic catalysis. 18,19 The Cu(I)catalyzed azide−alkyne cycloaddition (CuAAC) has the most widely applied toolbox for 1,2,3-triazole linkers and found potential applications in various research fields such as materials science, organic synthesis, medicinal chemistry, and chemical biology. 20−26 Currently, bifunctional cross linkers highlight the key challenge in developing chemoselective sequential reactions in a timely and cost-effective manner, while providing broad functional group tolerance.…”