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Journal Article

Separated local field spectroscopy of columnar and nematic liquid crystals

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Zimmermann,  Herbert
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

External Resource

http://www.sciencedirect.com/science/article/pii/S1090780703000582/pdfft?md5=15bf3a9db4c2652459149912ec8ecdb5&pid=1-s2.0-S1090780703000582-main.pdf
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http://dx.doi.org/10.1016/S1090-7807(03)00058-2
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Citation

Dvinskikh, S. V., Zimmermann, H., Maliniak, A., & Sandström, D. (2003). Separated local field spectroscopy of columnar and nematic liquid crystals. Journal of Magnetic Resonance, 163(1), 46-55. doi:10.1016/S1090-7807(03)00058-2.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-B03D-0
Abstract
We are in this work comparing the efficiencies of various 1H-13C separated local field (SLF) experiments when applied to columnar and nematic liquid crystals. In particular, the performances of the conventional SLF, proton-detected local field (PDLF), and polarization inversion spin exchange at the magic angle (PISEMA) methods in terms of spectral resolution, robustness, and ability to measure long-range couplings are investigated. The PDLF sequence provides in most cases the best dipolar resolution. This is especially obvious for weakly coupled 1H-13C spin pairs.