11 research outputs found
MainâGroup Metal Complexes in Selective Bond Formations Through Radical Pathways
Recent years have witnessed remarkable advances in radical reactions involving mainâgroup metal complexes. This includes the isolation and detailed characterization of mainâgroup metal radical compounds, but also the generation of highly reactive persistent or transient radical species. A rich arsenal of methods has been established that allows control over and exploitation of their unusual reactivity patterns. Thus, mainâgroup metal compounds have entered the field of selective bond formations in controlled radical reactions. Transformations that used to be the domain of late transitionâmetal compounds have been realized, and unusual selectivities, high activities, as well as remarkable functionalâgroup tolerances have been reported. Recent findings demonstrate the potential of mainâgroup metal compounds to become standard tools of synthetic chemistry, catalysis, and materials science, when operating through radical pathways
Harvesting Water from Air with High-Capacity, Stable Furan-Based MetalâOrganic Frameworks
We synthesized two isoreticular furan-based metalâorganic frameworks (MOFs), MOF-LA2-1(furan) and MOF-LA2-2(furan) with rod-like secondary building units (SBUs) featuring 1D channels, as sorbents for atmospheric water harvesting (LA = long arm). These aluminum-based MOFs demonstrated a combination of high water uptake and stability, exhibiting working capacities of 0.41 and 0.48 g of water per g of MOF (under isobaric conditions of 1.70 kPa), respectively. Remarkably, both MOFs showed negligible loss in water uptake after 165 adsorption-desorption cycles. These working capacities rival those of MOF-LA2-1(pyrazole), which has a working capacity of 0.55 g of water per g of MOF. The current MOFs stand out for their high water stability as evidenced by 165 cycles of water uptake and release. MOF-LA2-2(furan) is the first aluminum MOF to employ a double \u27long arm\u27 extension strategy, confirmed through single-crystal X-ray diffraction (SCXRD). The MOFs were synthesized using a straightforward synthesis route. This study offers valuable insights into designing durable, water-stable MOFs and underscores their potential for efficient water harvesting