Seung Bin Baek

A highly robust porous hydrogen-bonded organic framework (HOF) constructed by 4,4',4''-benzene-1,3,5-triyl-tris(benzoic acid) not only achieves the highest uptakes of ethylene and ethane among the HOF materials, but also exhibits unusual adsorption selectivity of C2H6 over other C2 gases. Besides, it exhibits the second highest acetylene uptake among all the reported HOF materials.

MOF-74 is one of the most explored metal-organic frameworks (MOFs), but its functionalization is limited to the dative post-synthetic modification (PSM) of the monodentate solvent site. Owing to the nature of the organic ligand and framework structure of MOF-74, the covalent PSM of MOF-74 is very demanding. Herein, we report, for the first time, the covalent PSM of amine-tagged defective Ni-MOF-74, which is prepared by de novo solvothermal synthesis by using aminosalicylic acid as a functionaliz

While the one-pot reaction of zirconium metal ions with a mixture of two dicarboxylate heterolinkers yielded a 12-c <b>fcu</b> Zr MOF with randomly distributed linkers, the symmetry-guided stepwise reaction produced the same MOF with both linkers precisely located in the framework. In the latter method, linear terephthalic acid (H₂BDC) derivatives with <i>mmm</i> symmetry were inserted into the <i>mmm</i>-symmetry sites of the flexible Zr MOF with 8-c <b>bcu</b> topology (<b>ZRN-bcu</

Crystallographic observation of adsorbed gas molecules is a highly difficult task due to their rapid motion. Here, we report the in situ single-crystal and synchrotron powder X-ray observations of reversible CO2 sorption processes in an apparently nonporous organic crystal under varying pressures at high temperatures. The host material is formed by hydrogen bond network between 1,3,5-tris-(4-carboxyphenyl)benzene (H3BTB) and N,N-dimethylformamide (DMF) and by π-π stacking between the H3BTB moiet

Incorporating functionality into the framework of metal-organic frameworks (MOFs) has attracted substantial interest because the physical and chemical properties of MOFs can be tuned by functionalizing pores. The ligand functionalization of MOF-74 is challenging because of its pristine organic ligand and framework structure. Herein, we report a series of ligand-functionalized Ni-MOF-74 derivatives synthesized by defect engineering using a mixed-ligand approach. Defect generation and ligand funct

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Abstract MOF‐74 is one of the most explored metal–organic frameworks (MOFs), but its functionalization is limited to the dative post‐synthetic modification (PSM) of the monodentate solvent site. Owing to the nature of the organic ligand and framework structure of MOF‐74, the covalent PSM of MOF‐74 is very demanding. Herein, we report, for the first time, the covalent PSM of amine‐tagged defective Ni‐MOF‐74, which is prepared by de novo solvothermal synthesis by using aminosalicylic acid as a fun

The conformation of a neuropeptide, substance P (SP), in isotropic (q = 0.5) acidic bicelles was investigated using two-dimensional NMR techniques. By the nuclear Overhauser effect (NOE) cross peaks between SP and long-chain lipid molecules SP was probed to bind on the flat surface of the disc-like bicelles. Structural analysis of NMR data indicated that the helical conformation of SP extended to the C-terminal region of Leu10 as well as in the mid-region from Pro4 to Phe8. As compared with the

The pore space partition approach via post-synthetic linker insertion was used to modulate the porosity of a fragile Ag(i)-carboxylate framework with potentially large pore space. The resulting Ag(i)-MOFs with partitioned pores showed enhanced permanent porosity compared with a nonpartitioned Ag(i)-carboxylate framework.

The temperature dependence of the partition coefficients of a neuropeptide, substance P (SP), in isotropic acidic bicelles was investigated by using a pulsed field gradient nuclear magnetic resonance diffusion technique. The addition of negatively charged dimyristoylphosphatidylserine to the neutral bicelle changed the SP partitioning a little, which implies that the hydrophobic interaction between the hydrophobic residues of SP and the acyl chains of lipid molecules is the major interaction whi

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Amine-tagged defective Ni-MOF-74 was prepared by solvothermal synthesis using aminosalicylic acid as a functionalized fragmented ligand, as described by Seung Bin Baek, Myoung Soo Lah et al. in their Communication on page 9296. The covalent post-synthetic modification and subsequent post-synthetic metalation with palladium(II) ions affords a palladium(II)-incorporated Ni-MOF-74 catalyst, which exhibits highly efficient, size-selective, and recyclable catalytic activity for the Suzuki–Miyaura cou

Sulfamatgebundenes MOF-808 mit superprotonischer Leitfähigkeit wird in der Zuschrift von Yung Sam Kim, Seung Bin Baek, Myoung Soo Lah et al. auf S. 14455 beschrieben. Die Änderung des Bindungsmodus des Sulfamats vom einzähnigen Modus zum verbrückenden zweizähnigen Modus führt zu einer effizienteren Protonenleitung durch die Erzeugung einer acideren kationischen Sulfiliminiumgruppe (-S=NH2+).

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Amin-markiertes defekthaltiges Ni-MOF-74 wird durch Solvothermalsynthese unter Verwendung von Aminosalicylsäure als funktionalisierter fragmentierter Ligand hergestellt, wie Seung Bin Baek, Myoung Soo Lah und Mitarbeiter in ihrer Zuschrift auf S. 9382 berichten. Kovalente postsynthetische Modifikation und Metallisierung mit Pd(II)-Ionen führen zu einem Pd(II)-inkorporierten Ni-MOF-74-Katalysator für die Suzuki-Miyaura-Kupplung.