Sungsool Wi
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View article: Single-Crystal NMR for <sup>17</sup> O in Alanine Enantiomers
Single-Crystal NMR for <sup>17</sup> O in Alanine Enantiomers Open
Single-crystal solid-state nuclear magnetic resonance (ssNMR) spectroscopy, which enables detailed analysis of the electronic structures of crystalline molecules, offers a unique opportunity to investigate molecular chirality -- an essenti…
View article: Probing the <sup>11</sup> B Quadrupolar and Chemical Shielding Tensors in a Pair of Organoboron Enantiomers
Probing the <sup>11</sup> B Quadrupolar and Chemical Shielding Tensors in a Pair of Organoboron Enantiomers Open
Chirality plays a fundamental role in numerous scientific fields, yet the electronic structures of chiral compounds, particularly pairs of enantiomers, remain understudied. In this study, we address this gap by investigating the electronic…
View article: Toward Generalized Solution-State <sup>1</sup>H DNP NMR via Particle-Mediated Cross-Relaxation
Toward Generalized Solution-State <sup>1</sup>H DNP NMR via Particle-Mediated Cross-Relaxation Open
This study discusses a potential route for enhancing 1H NMR signals in the liquid phase at high magnetic fields for samples on the 100 μL volume scale using dynamic nuclear polarization (DNP). The approach involves dispersing an inert powd…
View article: Probing the 11B quadrupolar and chemical shielding tensors in a pair of organoboron enantiomers
Probing the 11B quadrupolar and chemical shielding tensors in a pair of organoboron enantiomers Open
Chirality plays a fundamental role in numerous scientific fields, yet the electronic structures of chiral compounds, particularly enantiomers, remain insufficiently understood. In this study, we address this gap by investigating the electr…
View article: Detailed Characterization of Vitrinite-Rich Subbituminous and Bituminous Coals for Utilization in Carbon Fiber Precursor Production
Detailed Characterization of Vitrinite-Rich Subbituminous and Bituminous Coals for Utilization in Carbon Fiber Precursor Production Open
Chemical structures of candidate coals (one subbituminous coal from the Powder River Basin and three bituminous Eastern US coals) were examined for potential low-cost carbon fiber precursor production. Here, the structural evaluation exami…
View article: Short and long range 2D 15N-15N NMR correlations among peptide groups by novel solid state dipolar mixing schemes
Short and long range 2D 15N-15N NMR correlations among peptide groups by novel solid state dipolar mixing schemes Open
A recently developed homonuclear dipolar recoupling scheme, Adiabatic Linearly FREquency Swept reCOupling (AL FRESCO), was applied to record two-dimensional (2D) 15 N- 15 N correlations on uniformly 15 N-labeled GB1 powders. A major featur…
View article: Toxic Misfolded Transthyretin Oligomers with Different Molecular Conformations Formed through Distinct Oligomerization Pathways
Toxic Misfolded Transthyretin Oligomers with Different Molecular Conformations Formed through Distinct Oligomerization Pathways Open
Protein aggregation is initiated by structural changes from native polypeptides to cytotoxic oligomers, which form cross-β structured amyloid. Identification and characterization of oligomeric intermediates are critically important for und…
View article: Mechanistic Insights into the Structural Stability of Collagen-Containing Biomaterials Such as Bones and Cartilage
Mechanistic Insights into the Structural Stability of Collagen-Containing Biomaterials Such as Bones and Cartilage Open
Structural stability of various collagen-containing biomaterials such as bones and cartilage is still a mystery. Despite the spectroscopic development of several decades, the detailed mechanism of collagen interaction with citrate in bones…
View article: Cover Feature: An Efficient, Robust New Scheme for Establishing Broadband Homonuclear Correlations in Biomolecular Solid State NMR (ChemPhysChem 4/2020)
Cover Feature: An Efficient, Robust New Scheme for Establishing Broadband Homonuclear Correlations in Biomolecular Solid State NMR (ChemPhysChem 4/2020) Open
The Cover Feature illustrates two takes of an AL FRESCO mixing. On the fore is the introduction of a new NMR sequence for establishing homonuclear solid state 2D correlations, based on the use of weak frequency-swept pulses. The approach i…
View article: Rapid Self-Assembly of Metal/Polymer Nanocomposite Particles as Nanoreactors and Their Kinetic Characterization
Rapid Self-Assembly of Metal/Polymer Nanocomposite Particles as Nanoreactors and Their Kinetic Characterization Open
Self-assembled metal nanoparticle-polymer nanocomposite particles as nanoreactors are a promising approach for performing liquid phase reactions using water as a bulk solvent. In this work, we demonstrate rapid, scalable self-assembly of m…