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 journalArticle

1 Citation (Scopus)

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, C6 19F6 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 languageEnglish (US)
Pages (from-to)155-158
Number of pages4
JournalChemical Physics Letters
Volume310
Issue number1-2
DOIs
StatePublished - Aug 27 1999
Externally publishedYes

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Magnetic relaxation
magnetic relaxation
solutes
Hamiltonians
Spin-lattice relaxation
Spectral density
high resolution
magnetic dipoles
spin-lattice relaxation
low concentrations
dipoles
low frequencies
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Order director fluctuations contribute to the low-field magnetic relaxation of dilute solutes in a nematic solvent. / Dinesen, T. R.J.; Teng, C. L.; Wagner, S.; Bryant, R. G.

In: Chemical Physics Letters, Vol. 310, No. 1-2, 27.08.1999, p. 155-158.

Research output: Contribution to journalArticle

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