Rotating-frame nuclear magnetic relaxation in a long-chain model biomembrane (C 18H 37NH 3) 2SnCl 6

Kyu Won Lee; Cheol Eui Lee; J. Y. Choi; Joon Kim

Rotating-frame nuclear magnetic relaxation in a long-chain model biomembrane (C ₁₈H ₃₇NH ₃) ₂SnCl ₆

Kyu Won Lee, Cheol Eui Lee, J. Y. Choi, Joon Kim

Research output: Contribution to journal › Article

Abstract

The lattice dynamics in bis-(n-(C ₁₈H ₃₇NH ₃) ₂SnCl ₆, where the hydrocarbon part is analogous to a lipid membrane, was investigated by means of 55-kHz ¹H rotating-frame nuclear magnetic resonance. The critical fluctuation near the order-disorder transition of the rigid alkyl chains is attributed to the high-frequency dynamics for long-chain compounds, in contrast to the low-frequency dynamics for short-chain compounds. Besides, the non-exponential spin-lattice relaxation is ascribed to chain segmental motions, giving rise to a distribution of correlation times and freezing below 230 K.

Original language	English
Pages (from-to)	1084-1086
Number of pages	3
Journal	Journal of the Korean Physical Society
Volume	47
Issue number	6
Publication status	Published - 2005 Dec

Keywords

Lipid membrane
Low-frequency dynamics
NMR

ASJC Scopus subject areas

Physics and Astronomy(all)

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Lee, K. W., Lee, C. E., Choi, J. Y., & Kim, J. (2005). Rotating-frame nuclear magnetic relaxation in a long-chain model biomembrane (C ₁₈H ₃₇NH ₃) ₂SnCl ₆ Journal of the Korean Physical Society, 47(6), 1084-1086.

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abstract = "The lattice dynamics in bis-(n-(C 18H 37NH 3) 2SnCl 6, where the hydrocarbon part is analogous to a lipid membrane, was investigated by means of 55-kHz 1H rotating-frame nuclear magnetic resonance. The critical fluctuation near the order-disorder transition of the rigid alkyl chains is attributed to the high-frequency dynamics for long-chain compounds, in contrast to the low-frequency dynamics for short-chain compounds. Besides, the non-exponential spin-lattice relaxation is ascribed to chain segmental motions, giving rise to a distribution of correlation times and freezing below 230 K.",

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AB - The lattice dynamics in bis-(n-(C 18H 37NH 3) 2SnCl 6, where the hydrocarbon part is analogous to a lipid membrane, was investigated by means of 55-kHz 1H rotating-frame nuclear magnetic resonance. The critical fluctuation near the order-disorder transition of the rigid alkyl chains is attributed to the high-frequency dynamics for long-chain compounds, in contrast to the low-frequency dynamics for short-chain compounds. Besides, the non-exponential spin-lattice relaxation is ascribed to chain segmental motions, giving rise to a distribution of correlation times and freezing below 230 K.

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