期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 8, 期 4, 页码 710-714出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.6b02653
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资金
- National Science Foundation [CHE-1308381]
Here we demonstrate that a term in the nuclear spin Hamiltonian, the antisymmetric J-coupling, is fundamentally connected to molecular chirality. We propose and simulate a nuclear magnetic resonance (NMR) experiment to observe this interaction and differentiate between enantiomers without adding any additional chiral agent to the sample. The antisymmetric J-coupling may be observed in the presence of molecular orientation by an external electric field. The opposite parity of the antisymmetric coupling tensor and the molecular electric dipole moment yields a sign change of the observed coupling between enantiomers. We show how this sign change influences the phase of the NMR spectrum and may be used to discriminate between enantiomers.
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