An Interweaving MOF with High Hydrogen Uptake

Abstract

An interweaving copper metal-organic framework possessing high porosity and high hydrogen uptake has been successfully designed and synthesized.

Insight in the activity and diastereoselectivity of various Lewis acid catalysts for the citronellal cyclization

“…A first explorative transition state search was performed on the Cu 2 (COO) 4 paddle-wheel (Cu-PDWL), which is a metal dimer, forming a four-coordinate square planar vertex [36,61,84,85]. The Cu-PDWL is seemingly easier to treat due to the smaller number of atoms in the metal-dimer, but has proven to be quite ambitious from theoretical point of view to perform a proper transition state search.…”

High H2 Adsorption by Coordination‐Framework Materials

“…In coordination frameworks, the metal cations and carboxylate ligands can form a range of multinuclear nodes with predefined geometries (for example, the binuclear paddle-wheel units {Zn 2 (O 2 CR) 4 } [12] and {Cu 2 (O 2 CR) 4 } [5,10,13] (4-connected), the trinuclear units {Ni 3 O(O 2 CR) 6 }, {Fe 3 O-(O 2 CR) 6 }, [6,14] and {Cr 3 O(O 2 CR) 6 } [11] (6-connected), and the tetranuclear unit {Zn 4 O(O 2 CR) 6 } [7,15] (6-connected)), which are largely dependent upon the metal cation and the reaction stoichiometry. The three coordination-framework materials in this study are based on biphenyl, terphenyl, and quaterphenyl tetracarboxylic acids.…”

A Mesoporous Metal–Organic Framework

“…A prominent example is the IRMOF series (isoreticular MOFs). [10] Other examples of increasing pore size through linker extensions are [Cu 3 -(btc) 2 ] [11] (btc = benzene-1,3,5-tricarboxylate; tbo-topology), PCN-6 [12] ([Cu 3 (tatb) 2 ], tatb = 4,4',4''-s-triazine-2,4,6-triyltribenzoate; tbo), or MOF-14 [13] ([Cu 3 (btb) 2 ], btb = benzene-1,3,5-tribenzoate; pto), built from paddle wheel clusters and tritopic linkers. However, in PCN-6 and MOF-14, which have the btb linker (a longer version of the btc linker), the porosity is reduced because of the presence of two interwoven 3D nets in the structure.…”