Deuterium NMR of perdeuteriated di and monoacids dissolved in the lyomesophases 
of dipotassium hexadecanedioate

Gutman, H.; Luz, Zeev; Loewenstein, A.; Zimmermann, Herbert

doi:10.1080/02678299008047328

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Deuterium NMR of perdeuteriated di and monoacids dissolved in the lyomesophases of dipotassium hexadecanedioate

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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;
Zimmermann Group, Max Planck Institute for Medical Research, Max Planck Society;
Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Gutman, H., Luz, Z., Loewenstein, A., & Zimmermann, H. (1990). Deuterium NMR of perdeuteriated di and monoacids dissolved in the lyomesophases of dipotassium hexadecanedioate. Liquid Crystals, 8(1), 31-46. doi:10.1080/02678299008047328.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-AD1F-4

Abstract

The behaviour of α,ω-diacid and α-monoacid guest molecules (with carbon atoms ranging between 6 to 22) in the lamellar and hexagonal mesophases of dipotassium thapsate (KOOC(CH2)14MCOOK)-water mixtures have been investigated, using deuterium NMR spectroscopy. Addition of short diacids to either the lamellar or hexagonal phases results in phase separation and essentially no incorporation into the mesophase structure. The deuterium spectra of the guest molecules exhibit characteristic patterns which are qualitatively interpreted in terms of their ordering properties. In no case were separate signals observed due to folded diacid guest molecules which have their carboxyl groups on the same side of the interface.