Hexahydroxytriphenylene for the synthesis of group 13 MOFs – a new inorganic building unit in a β-cristobalite type structure

Abstract

Highly porous three-dimensional Al- and Ga-MOFs with radical catecholate linker molecules were synthesized and characterized by electron diffraction, molecular simulation, Rietveld refinement and N2 sorption measurements.

A Robust and Biocompatible Bismuth Ellagate MOF Synthesized Under Green Ambient Conditions

“… 3 , 4 Considering the great variety of MOFs, the number of structures bridged only through phenolate ligands are few (representing <0.0008% of MOF reports), and existing examples involve synthetic linkers such as tetrahydroxybenzoate, 5 dihydroxybenzoquinone, 6 − 8 and hexahydroxytriphenylate ligands. 9 − 11 Numerous phenolate-based MOFs have been associated with higher chemical stability (especially in aqueous media) than carboxylate based MOFs—a consequence of the higher p K a of the phenolate groups, leading to strong chelation. 12 , 13 …”

Correlated disorder in metal–organic frameworks

“…17 But we note in conclusion the possible additional importance of different types of correlated disorder in MOFs to those outlined here-involving e.g. frustrated magnetism, 78 local charge ordering, 81 or cooperative spin-state transitions. 82 We see enormous potential in combining the unconventional physics of correlated disordered states with the scope for exquisite control over geom-etry for which MOFs are renowned.…”

A window-space-directed assembly strategy for the construction of supertetrahedron-based zeolitic mesoporous metal–organic frameworks with ultramicroporous apertures for selective gas adsorption

“…S16-S18 †). In particular, the BET surface area of ST-sod-Co/Ti was superior to those of other sod-type MOFs such as ZIF-8, 25,26 IFMC-1, 43 TTF-4, 44 CPM-8S, 45 and M-BTT (M ¼ Mn, Fe, Co, Cu, Cd; BTT ¼ 1,3,5benzenetristetrazolate); 46 the value is also slightly larger than those of well-known ST-based porous materials such as MIL-143, 23 CAU-42, 24 PCN-777, 47 MOF-808, 48 MOF-818, 49 and sph-MOF-4. 50 The pore volumes of ST-sod-Co, ST-sod-Ni, and T-sod-Co/Ti were as 0.62, 0.62, and 0.71 cm 3 g À1 , respectively, which were in good agreement with the corresponding theoretical values of 0.65, 0.73, and 0.65 cm 3 g À1 , respectively, calculated using the PLATON program.…”

“…[18][19][20][21] Of the numerous zeolitic network topologies reported, only two types can be categorized as zeolitic MOFs due to augmentation by STs based on metal trimers, namely, the mtn 15,16,22 and b-cristobalite networks. 17,23,24 This could be presumably due to the lack of large, high-quality crystals for single-crystal X-ray diffraction (SCXRD) analysis and the complexity of the results obtained via powder X-ray diffraction (PXRD). Despite the associated challenges, the deliberate introduction of cornershared STs based on metal trimers into MOFs with other zeolitic network topologies, especially those containing suitably sized single-crystals for SCXRD, is a crucial step toward understanding these materials.…”