Pentacene: excited triplet, molecular spin, polarizing agent, or quantum sensor? Molecular spin based quantum sensors offer a range of advantages, from high spin density to functionalization via chemical tunability. Here, we demonstrate AC vector sensing using the photoexcited spin triplet of deuterated pentacene molecules, operating at zero external magnetic field and room temperature. We achieve […]
From Cryogenic to Room Temperature: Advances in DNP-MAS for Materials Characterization This presentation highlights recent advances in Dynamic Nuclear Polarization (DNP)-enhanced solid-state NMR spanning temperatures from cryogenic (30-100 K) to ambient conditions. At cryogenic temperatures, cross- effect DNP was applied to a range of material systems, including SiO₂ nanoparticle-polymer composites, conductive mesoporous polymers, and the […]
NMR Structure Determination in Molecular Solids Rich chemical understanding is critically important to understanding function in all chemical systems. Here, we show how the determination of complete three-dimensional structures can be improved and accelerated for materials at natural isotopic abundance using new experimental methods with >100 kHz MAS, machine-learned chemical shift predictions, and rapid assignment […]
