A new strategy for constructing a disulfide-functionalized ZIF-8 analogue using structure-directing ligand–ligand covalent interaction

Abstract

Inter-ligand –S–S– covalent interaction plays a key role in the synthesis of a ZIF-8 analogue CPM-8S.

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.…”

Molecular Intermediate in the Directed Formation of a Zeolitic Metal–Organic Framework

“…Such behavior highlights the importance of in situ monitoring for the discovery of intermediate phases . Since this study was limited to one SDA, we will continue our explorations into other agents (Scheme ) that direct the formation of other anionic, as well as neutral, − framework materials in order to understand how a small organic molecule can impact and dictate the formation of 3D extended networks. Additionally, further probing of the intermediate-to-ZMOF transition is needed to better understand the role of SDAs if the ultimate goal is to make rational ab initio design and synthesis of porous materials a less formidable task.…”

Sulfur Chemistry for Stable and Electroactive Metal‐Organic Frameworks: The Crosslinking Story

“…Figure 11. For example, Feng et al recently used an in situ oxidation procedure to react 1,2,4-triazole-3-thiol and ZnCl 2 ,a nd accessed a ZIF-8-type net with disulfide bonds between the triazolate linkers: [29] future work to reduce the disulfide bonds might offer an entry into at hiol-equipped net. Disorder of the central benzene ring is shownino nly one linker;Z rc oordination polyhedra displayed in green;b)Aschematic of Suzukicoupling reaction catalyzedint he presenceo fb oth the red, metalated ZrDMTD-Pd crystals and the colorless as-madecrystalst hat weremeant as at rap for Pd species, together with photographs of the reaction mixture beforea nd after the reaction:the colorless as-made crystals show no color change, indicating that they did not get loaded with Pd in the reaction process,i .e.,noPdw as leached from the colored metalated crystals.…”

“…The hard-and-soft divide here, however,i sl ess distinct, and the assembly of the metal-pyrazolate net would likely entail the interference from the thiol group;n amely,b oth the Na nd S donors tend to simultaneously bond with the metal centers, [28] and it would be less straightforward to build am etal-pyrazolate net with free-standing thiol groups.S olutions to this problem, however, can be envisioned-even from known works. For example, Feng et al recently used an in situ oxidation procedure to react 1,2,4-triazole-3-thiol and ZnCl 2 ,a nd accessed a ZIF-8-type net with disulfide bonds between the triazolate linkers: [29] future work to reduce the disulfide bonds might offer an entry into at hiol-equipped net. Also, Kitagawa et al protected the reactive -SH group of 5-mercaptoisophthalic acid in the form of the disulfideu nit CH 3 SS-, which provedt or emain fully self-standing in the assembly of aZ n II -based network [30] The disulfide units therein can then be dissociated by UV light to form the highly reactive thiyl radicals in the pore.…”

“…For example, Feng et al. recently used an in situ oxidation procedure to react 1,2,4‐triazole‐3‐thiol and ZnCl 2 , and accessed a ZIF‐8‐type net with disulfide bonds between the triazolate linkers: future work to reduce the disulfide bonds might offer an entry into a thiol‐equipped net. Also, Kitagawa et al.…”