Quadrupole relaxation enhancement and polarisation transfer in DMSO solution of [Bi(NO3)3(H2O)3]*18-crown-6 in solid state

Danuta Kruk*, Elzbieta Masiewicz, Evrim Umut, Martin Schlögl, Roland Fischer, Hermann Scharfetter

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

1H spin-lattice relaxation studies have been performed for pure [Bi(NO3)3(H2O)3]*18-crown-6 in powder and its solution in dimethyl sulfoxide (DMSO). The experiments have been carried out in the frequency range of 10 kHz–30 MHz and the temperature range of 240–277 K; at 277 K the solution is already frozen. The 1H relaxation of pure [Bi(NO3)3(H2O)3]*18-crown-6 has been interpreted in terms of three dynamical processes. Quadrupole Relaxation Enhancement effects have been observed in the frozen DMSO solution of [Bi(NO3)3(H2O)3]*18-crown-6. The specific mechanisms of the 1H spin-lattice relaxation enhancement have been discussed distinguishing between effects caused by time independent (residual) and fluctuating 1H-209Bi dipole-dipole interactions.

Original languageEnglish
Pages (from-to)944 - 951
JournalMolecular Physics
Volume2018
Issue number117
DOIs
Publication statusE-pub ahead of print - 11 Dec 2018

Keywords

  • NMR
  • polarization transfer
  • quadrupole peaks
  • relaxation

ASJC Scopus subject areas

  • Biophysics
  • Molecular Biology
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Fields of Expertise

  • Human- & Biotechnology

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