Nuclear magnetic resonance magnetometer solutions containing nitroxide free radicals having deuterium atoms
Abstract
Abstract A MAGNETOMETER FOR MEASURING A WEAK MAGNETIC FIELD AND ITS VARIATIONS INCLUDES A SOLUTION WHICH COMPRISES A SOLVENT WITH ATOMIC NUCLEI (FOR INSTANCE PROTONS) HAVING NON-ZERO MAGNETIC MOMENT AND AN ORGANIC HYDROGENATED FREE RADICAL HAVING UNPAIRED ELECTRONS DISSOLVED IN THE SOLVENT. THE FREE RADICAL COMPRISES A NITROXIDE GROUP, THE NITROGEN ATOM OF WHICH IS EXCLUSIVELY LINKED TO TWO CARBON ATOMS EACH LINKED WITH THREE OTHER CARBON ATOMS. FOR NARROWING AND ENHANCING THE RESONANCE LINES, A MAJOR PORTION AT LEAST OF THE HYDROGEN ATOMS OF THE FREE RADICAL ARE DEUTERIUM ATOMS. RADICALS SUCH AS DITERIOBUTYLNITROXIDE (DTBN) AND RADICALS HAVING A HEXAGONAL HETERCOCYCLE THE HETEROATOM OF WHICH IS NITROGEN (FOR INSTANCE TETRAMETHYL-2-2-6-6-AZA-1-CYCLOHEXANONE-3NITROXIDE 1) MAY BE USED.
Inventors
- 👤 Robert Chiarellier
- 👤 Andre Rassat
- 👤 Rene Besson
- 👤 Antoine Salvi
Bibliographic Details
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