01649nam a22002897a 4500 20231020170146.0 231020b ||||| |||| 00| 0 eng d 0021-9584 RIEBPL Library 540.7 Hal Van Ryswyk et al... Estimating Quantum Dot Size with Pulsed Field Gradient NMR (Journal Article) USA :American Chemical Society ,May 2023 2021–2026 p. American Chemical Society, Volume 100, Issue 5 ***______{For Hard Copy, Please visit Library.}________*** Abstract- Pulsed field gradient nuclear magnetic resonance (NMR) is used to estimate the size of quantum dots (QDs) produced in a simple, fast, small-scale synthesis. This upper-division laboratory experiment teaches the basics of QD synthesis and pulsed field gradient NMR, a powerful technique for measuring diffusion coefficients in solution. The diffusion coefficients are used to calculate hydrodynamic radii, which are compared to core radii obtained from optical absorbance sizing curves, providing insight into the structure of QDs in colloidal suspension and the nature of the information provided by pulsed field gradient NMR. Upper-Division Undergraduate Inorganic Chemistry Physical Chemistry Interdisciplinary/Multidisciplinary Laboratory Instruction Hands-On Learning/Manipulatives UV−Vis Spectroscopy https://doi.org/10.1021/acs.jchemed.3c00155 PER 0 0 0 0 RIEBPL RIEBPL 2023-10-20 0 540.7 2023-10-20 00:00:00 2023-10-20 PER 44585 44584