تقرير
Enantiospecificity in NMR Enabled by Chirality-Induced Spin Selectivity
| العنوان: | Enantiospecificity in NMR Enabled by Chirality-Induced Spin Selectivity |
|---|---|
| المؤلفون: | Georgiou, T., Palma, J. L., Mujica, V., Varela, S., Galante, M., Garcıa, V. Santamarıa, Mboning, L., Schwartz, R. N., Cuniberti, G., Bouchard, L. -S. |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter, Physics - Biological Physics, Physics - Chemical Physics |
| الوصف: | Spin polarization in chiral molecules is a magnetic molecular response associated with electron transport and enantioselective bond polarization that occurs even in the absence of an external magnetic field. An unexpected finding by Santos and co-workers reported enantiospecific NMR responses in solid-state cross-polarization (CP) experiments, suggesting a possible additional contribution to the indirect nuclear spin-spin coupling in chiral molecules induced by bond polarization in the presence of spin-orbit coupling. Herein we provide a theoretical treatment for this phenomenon, presenting an effective spin-Hamiltonian for helical molecules like DNA and density functional theory (DFT) results on amino acids that confirm the dependence of J-couplings on the choice of enantiomer. The connection between nuclear spin dynamics and chirality could offer insights for molecular sensing and quantum information sciences. These results establish NMR as a potential tool for chiral discrimination without external agents. Comment: 102 pages, 16 figures, 40 tables |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.00861 |
| رقم الأكسشن: | edsarx.2407.00861 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |