Order director fluctuations contribute to the low-field magnetic relaxation of dilute solutes in a nematic solvent

T. R.J. Dinesen; C. L. Teng; S. Wagner; R. G. Bryant

doi:10.1016/S0009-2614(99)00785-X

Order director fluctuations contribute to the low-field magnetic relaxation of dilute solutes in a nematic solvent

T. R.J. Dinesen, C. L. Teng, S. Wagner, R. G. Bryant

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

High-resolution magnetic relaxation dispersion (HR-MRD) is used to measure the field dependence of the ¹⁹F spin-lattice relaxation rates of C₆F₆ dissolved in the nematic phase of p-methoxybenzilidene-p-n-butylaniline (MBBA). HR-MRD permits measurement of low concentration solute spectral densities, which can be interpreted in terms of the various contributions to the spin Hamiltonian and dynamical models of molecular motion. In this case, C₆¹⁹F₆ solute relaxation induced by magnetic dipole-dipole interactions reveal distinct components attributable to anisotropic rotational diffusion, and low-frequency order director fluctuations associated with the solvent.

Original language	English (US)
Pages (from-to)	155-158
Number of pages	4
Journal	Chemical Physics Letters
Volume	310
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(99)00785-X
State	Published - Aug 27 1999
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Order director fluctuations contribute to the low-field magnetic relaxation of dilute solutes in a nematic solvent",

abstract = "High-resolution magnetic relaxation dispersion (HR-MRD) is used to measure the field dependence of the 19F spin-lattice relaxation rates of C6F6 dissolved in the nematic phase of p-methoxybenzilidene-p-n-butylaniline (MBBA). HR-MRD permits measurement of low concentration solute spectral densities, which can be interpreted in terms of the various contributions to the spin Hamiltonian and dynamical models of molecular motion. In this case, C619F6 solute relaxation induced by magnetic dipole-dipole interactions reveal distinct components attributable to anisotropic rotational diffusion, and low-frequency order director fluctuations associated with the solvent.",

author = "Dinesen, {T. R.J.} and Teng, {C. L.} and S. Wagner and Bryant, {R. G.}",

note = "Funding Information: This research was supported by the National Institutes of Health Grant numbers GM 54067 and GM 34541, and the University of Virginia.",

year = "1999",

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doi = "10.1016/S0009-2614(99)00785-X",

language = "English (US)",

volume = "310",

pages = "155--158",

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TY - JOUR

T1 - Order director fluctuations contribute to the low-field magnetic relaxation of dilute solutes in a nematic solvent

AU - Dinesen, T. R.J.

AU - Teng, C. L.

AU - Wagner, S.

AU - Bryant, R. G.

N1 - Funding Information: This research was supported by the National Institutes of Health Grant numbers GM 54067 and GM 34541, and the University of Virginia.

PY - 1999/8/27

Y1 - 1999/8/27

N2 - High-resolution magnetic relaxation dispersion (HR-MRD) is used to measure the field dependence of the 19F spin-lattice relaxation rates of C6F6 dissolved in the nematic phase of p-methoxybenzilidene-p-n-butylaniline (MBBA). HR-MRD permits measurement of low concentration solute spectral densities, which can be interpreted in terms of the various contributions to the spin Hamiltonian and dynamical models of molecular motion. In this case, C619F6 solute relaxation induced by magnetic dipole-dipole interactions reveal distinct components attributable to anisotropic rotational diffusion, and low-frequency order director fluctuations associated with the solvent.

AB - High-resolution magnetic relaxation dispersion (HR-MRD) is used to measure the field dependence of the 19F spin-lattice relaxation rates of C6F6 dissolved in the nematic phase of p-methoxybenzilidene-p-n-butylaniline (MBBA). HR-MRD permits measurement of low concentration solute spectral densities, which can be interpreted in terms of the various contributions to the spin Hamiltonian and dynamical models of molecular motion. In this case, C619F6 solute relaxation induced by magnetic dipole-dipole interactions reveal distinct components attributable to anisotropic rotational diffusion, and low-frequency order director fluctuations associated with the solvent.

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DO - 10.1016/S0009-2614(99)00785-X

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VL - 310

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2

ER -

Order director fluctuations contribute to the low-field magnetic relaxation of dilute solutes in a nematic solvent

Abstract

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