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Citation: HUANG Kevin, WANG Hefang. Explanation of Spin Coupling Splitting Phenomenon in ¹H-NMR Spectra via Quantum Mechanics[J]. University Chemistry, ;2018, 33(12): 83-88. doi: 10.3866/PKU.DXHX201804021 shu

Explanation of Spin Coupling Splitting Phenomenon in ¹H-NMR Spectra via Quantum Mechanics

HUANG Kevin ,
WANG Hefang

Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, P. R. China

Received Date: 16 April 2018

Hydrogen nuclear magnetic resonance spectroscopy (¹H-NMR) is an important content in the university course of instrumental analysis and organic structure analysis. The splitting law of spin coupling between hydrogen nuclei is the focus of teaching and learning. Most textbooks explain that the cause of spin coupling splitting is due to the local magnetic field produced by the different spin orientation of other adjacent nuclei (nuclei magnetic dipole-dipole interaction, direct nuclear spin coupling), and a few monograph on Nuclear Magnetic Resonance refers to electron spin polarization mediated nuclear spin coupling (indirect nuclear spin coupling). Here we introduce quantum mechanics for explanation of the splitting law of spin coupling between hydrogen nuclei.
- ¹H-NMR,
- Spin coupling,
- Spin splitting,
- Quantum mechanics
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通讯作者: 陈斌, bchen63@163.com

Explanation of Spin Coupling Splitting Phenomenon in ¹H-NMR Spectra via Quantum Mechanics