A5085498355- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Crystallography and molecular interactions
- Carbon dioxide utilization in catalysis
- Membrane Separation and Gas Transport
- Supramolecular Chemistry and Complexes
- Molecular Sensors and Ion Detection
- Inorganic Fluorides and Related Compounds
- Gas Sensing Nanomaterials and Sensors
- Porphyrin and Phthalocyanine Chemistry
- Zeolite Catalysis and Synthesis
- Dendrimers and Hyperbranched Polymers
- RNA Interference and Gene Delivery
- Catalysis and Oxidation Reactions
- CO2 Reduction Techniques and Catalysts
- Cyclone Separators and Fluid Dynamics
- Carbon Dioxide Capture Technologies
- Laser-Ablation Synthesis of Nanoparticles
- Catalytic Processes in Materials Science
- Boron Compounds in Chemistry
- Magnolia and Illicium research
- Photochemistry and Electron Transfer Studies
- Silicone and Siloxane Chemistry
University of Chicago
2024-2025
University of Limerick
2019-2025
Physical Sciences (United States)
2024
Nankai University
2016-2024
Shanghai Jiao Tong University
2002
Closed-to-open structural transformations in flexible coordination networks are of potential utility gas storage and separation. Herein, we report the first example a SiF62–-pillared square grid material, [Cu(SiF6)(L)2]n (L = 1,4-bis(1-imidazolyl)benzene), SIFSIX-23-Cu. SIFSIX-23-Cu exhibits reversible switching between nonporous (β1) several porous (α, γ1, γ2, γ3) phases triggered by exposure to N2, CO2, or H2O. In addition, heating β1 433 K resulted irreversible transformation closed...
A series of catecholate-functionalized titanium-oxo clusters (TOCs), PTC-271 to PTC-277, with atomically precise structures were synthesized and characterized, including distinctive "boat" "chair" conformations in PTC-273 PTC-274, respectively. These cluster compounds are prominent for their ultralow optical band gaps, as is visually evident from the rather unusual black TOCs (B-TOCs), PTC-272 PTC-277. The found be ultrastable respect air, water, organic solvents, even acidic or basic...
Ultramicroporous materials can be highly effective at trace gas separations when they offer a high density of selective binding sites. Herein, we report that
Abstract Coordination networks that reversibly switch between closed and open phases are of topical interest since their stepped isotherms can offer higher working capacities for gas‐storage applications than the related rigid porous coordination networks. To be practical utility, pressures at which switching occurs, gate‐opening gate‐closing pressures, must lie storage delivery pressures. Here we study effect linker substitution to fine‐tune pressure. Specifically, three variants a...
Noble gas xenon (Xe) is an excellent anesthetic gas, but its rarity, high cost and constrained production prohibits wide use in medicine. Here, we have developed a closed-circuit Xe recovery reusage process with highly effective CO
We report that linker ligand substitution involving just one atom induces a shape-memory effect in flexible coordination network. Specifically, whereas SIFSIX-23-Cu, [Cu(SiF6 )(L)2 ]n , (L=1,4-bis(1-imidazolyl)benzene, SiF62- =SIFSIX) has been previously reported to exhibit reversible switching between closed and open phases, the activated phase of SIFSIX-23-CuN )(LN )2 (LN =2,5-bis(1-imidazolyl)pyridine), transformed kinetically stable porous with strong affinity for CO2 . As-synthesized α,...
Abstract Selective separation of propyne/propadiene mixture to obtain pure propadiene (allene), an essential feedstock for organic synthesis, remains unsolved challenge in the petrochemical industry, thanks mainly their similar physicochemical properties. We herein introduce a convenient and energy-efficient physisorptive approach achieve using microporous metal-organic frameworks (MOFs). Specifically, HKUST-1, one most widely studied high surface area MOFs that is available commercially,...
Propane (C3H8) is a widely used fuel gas. Metal–organic framework (MOF) physisorbents that are C3H8 selective offer the potential to significantly reduce energy footprint for capturing from natural gas, where typically present as minor component. Here we report recovery performance of previously unreported lonsdaleite, lon, topology MOF, chiral metal–organic material, [Ni(S-IEDC)(bipy)(SCN)]n, CMOM-7. CMOM-7 was prepared three low-cost precursors: Ni(SCN)2, S-indoline-2-carboxylic acid...
Separation of the C8 aromatic isomers, xylenes (PX, MX, and OX) ethylbenzene (EB), is important to petrochemical industry. Whereas physisorptive separation an energy-efficient alternative current processes, such as distillation, physisorbents do not generally exhibit strong selectivity. Herein, we report mixed-linker square lattice (sql) coordination network [Zn2(sba)2(bis)]n·mDMF (sql-4,5-Zn, H2sba or 4 = 4,4'-sulfonyldibenzoic acid, bis 5 trans-4,4'-bis(1-imidazolyl)stilbene) its sorption...
Luminescent chiral metal-organic frameworks (CMOFs) are promising candidates for the enantioselective sensing of important molecules. Herein, we report synthesis and characterization Zn Cd CMOFs based on 1,1'-bi-2-naphthol (BINOL)-derived 3,3',6,6'-tetra(benzoic acids), H4L-OEt H4L-OH. Four CMOFs, Zn-L-OEt, Zn-L-OH, Cd-L-OEt, Cd-L-OH, these ligands were crystallographically characterized. Zinc cations form 8-connected (8-c) penta-metallic secondary building units (SBUs), while cadmium 4-c...
Highly selective acetylene binding over CO 2 and ethylene is observed in the first example of a rigid sorbent that composed cis -bridging hexafluorosilicate anions.
CO<sub>2</sub>was transformed into different products in mild conditions with high yield and excellent selectivity using a single catalyst.
Four pinene isomers were successfully recognized and enantiomeric discriminated <italic>via</italic> an electrochemical method using a chiral gamma-cyclodextrin metal–organic framework as sensor.
Fixation of CO
Abstract Purifying methane (CH 4 ) from natural gas and coal mine (CMM) is of great significance but challenging in the chemical industry. Herein, a robust ultramicroporous metal‐organic framework (MOF) reported, which can be synthesized on gram scale by stirring under room temperature. Single‐component adsorption isotherms gases , ethane (C 2 H 6 ), propane 3 8 nitrogen (N )) breakthrough experiments indicate that MOF separate CH efficiently /C ternary mixture, with super high purity‐CH...
Chiral metal-organic materials (CMOMs), can offer molecular binding sites that mimic the enantioselectivity exhibited by biomolecules and are amenable to systematic fine-tuning of structure properties. Herein, we report reaction Ni(NO3)2, S-indoline-2-carboxylic acid (S-IDECH), 4,4'-bipyridine (bipy) afforded a homochiral cationic diamondoid, dia, network, [Ni(S-IDEC)(bipy)(H2O)][NO3], CMOM-5. Composed rod building blocks (RBBs) cross-linked bipy linkers, activated form CMOM-5 adapted its...
Three new manganese-based metal–organic frameworks (Mn-MOFs), [Mn(L)(H2O)]·2DMA (1), [Mn2(L)2(H2O)3]·2DMA (2), and [Mn2(L)2(DMF)2(H2O)]·3DMF (3), have been synthesized with the ligand H2L (N-phenyl-N′-phenylbicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxdiimide dicarboxylic acid). The secondary building units (SBUs) of Mn-MOFs are controlled by changing anions manganese salts, structures modified from two-fold interpenetrating to non-interpenetrating adjusting mixed solvent systems. Along...
Abstract A 4 .6 10 .8 topology hybrid ultramicroporous material (HUM), {[Cu 1.5 F(SiF 6 )(L) 2.5 ]·G} n , (L = 4,4′‐bisimidazolylbiphenyl, G guest molecules), 1 formed by cross‐linking interpenetrated 3D four‐connected CdSO ‐type nets with hexafluorosilicate anions is synthesized and evaluated in the context of gas sorption separation herein. first HUM functionalized two different types fluorinated sites (SiF 2− F − anions) lining along pore surface. The optimal size (≈5 Å) combining mixed...
A molecular porous material, MPM-2, comprised of cationic [Ni2 (AlF6 )(pzH)8 (H2 O)2 ] and anionic Al2 F11 (pzH)8 complexes that generate a charge-assisted hydrogen-bonded network with pcu topology is reported. The packing in MPM-2 sustained by multiple interionic hydrogen bonding interactions afford ultramicroporous channels between dense layers units. found to exhibit excellent stability water (>1 year). Unlike most organic frameworks which typically show poor solvents, exhibited respect...