近等价自旋-1/2对的溶液NMR谱中的交叉关联效应
化学物理
2022-09-21 v1
摘要
自旋-1/2对的NMR谱包含四个峰，在近等价区域中两个内峰远强于两个外峰。我们观察到，在对13C2标记的三炔衍生物进行测量时，强内峰具有显著不同的线宽。该线宽差异可归因于强交叉关联效应。我们发展了在近等价同核自旋-1/2对情况下、且分子表现出强各向异性旋转扩散时的交叉关联弛豫理论。其与实验NMR线形吻合良好。
引用
@article{arxiv.2208.09213,
title = {Cross-correlation effects in the solution NMR spectra of near-equivalent spin-1/2 pairs},
author = {James W. Whipham and Gamal A. I. Moustafa and Mohamed Sabba and Weidong Gong and Christian Bengs and Malcolm H. Levitt},
journal= {arXiv preprint arXiv:2208.09213},
year = {2022}
}
备注
Main text 11 pages, supplementary material 8 pages. Main text 5 figures, supplementary material 6 figures. To be published in the Journal of Chemical Physics