Real Time Control of NMR Relaxation for Improved Sensitivity and Resolution

Abstract

Molecules / molecular structures were investigated for enhancing NMR relaxation in the presence of light while not adversely affecting NMR spectral properties in the absence of light, with the ultimate goal of enhancing the sensitivity of NMR spectroscopy. The molecules / molecular structures are: [Fe(salicylaldehyde)2(triethylenetetramine)]PF6, [Fe(1-propyltetrazole)6](BF4)2, [Fe(4-amino-1,2,4-triazole)3](BF4)2, Platinum meso-tetraaryl porphyrin rhodamine B piperazine dyad, Pentacene-spiro-pentacene and tetracene-anthracene-tetracene, and 1-(dibenzo[b,d]furan-2-yl)phenylmethanone. This report contains new chemical and physical characterization of these materials.

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Document Details

Document Type
Technical Report
Publication Date
Jul 06, 2021
Accession Number
AD1140037

Entities

People

  • Christopher A. Klug
  • James P. Yesinowski
  • Joel B. Miller

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • 1-Ring Heterocyclic Compounds
  • Acquisition
  • Algorithms
  • Chemical Compounds
  • Chemistry
  • Data Acquisition
  • Data Analysis
  • Data Sets
  • Laser Dyes
  • Linear Programming
  • Materials
  • Molecular Structure
  • Molecules
  • Numbers
  • Relaxation Time
  • Square Roots
  • Temperature Gradients

Fields of Study

  • Chemistry

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Computational Modeling and Simulation
  • Polymer Science and Technology