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Nordstierna L, Yushmanov PV, Furó I. Solute-solvent contact by intermolecular cross relaxation. I. The nature of the water-hydrophobic interface. J Chem Phys. 2006;125(7):074704doi: 10.1063/1.2336199.
Nordstierna, L., Yushmanov, P. V., & Furó, I. (2006). Solute-solvent contact by intermolecular cross relaxation. I. The nature of the water-hydrophobic interface. The Journal of chemical physics, 125(7), 074704. https://doi.org/10.1063/1.2336199
Nordstierna, Lars, et al. "Solute-solvent contact by intermolecular cross relaxation. I. The nature of the water-hydrophobic interface." The Journal of chemical physics vol. 125,7 (2006): 074704. doi: https://doi.org/10.1063/1.2336199
Nordstierna L, Yushmanov PV, Furó I. Solute-solvent contact by intermolecular cross relaxation. I. The nature of the water-hydrophobic interface. J Chem Phys. 2006 Aug 21;125(7):074704. doi: 10.1063/1.2336199. PMID: 16942361.
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J Chem Phys. 2006 Aug 21;125(7):074704. doi: 10.1063/1.2336199.

Solute-solvent contact by intermolecular cross relaxation. I. The nature of the water-hydrophobic interface.

The Journal of chemical physics

Lars Nordstierna, Pavel V Yushmanov, István Furó

Affiliations

  1. Division of Physical Chemistry and Industrial NMR Center, Department of Chemistry, Royal Institute of Technology, SE-10044 Stockholm, Sweden.

PMID: 16942361 DOI: 10.1063/1.2336199

Abstract

Intermolecular cross-relaxation rates between solute and solvent were measured by {1H} 19F nuclear magnetic resonance experiments in aqueous molecular solutions of ammonium perfluoro-octanoate and sodium trifluoroacetate. The experiments performed at three different magnetic fields provide frequency-dependent cross-relaxation rates which demonstrate clearly the lack of extreme narrowing for nuclear spin relaxation by diffusionally modulated intermolecular interactions. Supplemented by suitable intramolecular cross-relaxation, longitudinal relaxation, and self-diffusion data, the obtained cross-relaxation rates are evaluated within the framework of recent relaxation models and provide information about the hydrophobic hydration. In particular, water dynamics around the trifluoromethyl group in ammonium perfluoro-octanoate are more retarded than that in the smaller trifluoroacetate.

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