Application of the Angular Overlap Model to Lanthanide Phthalocyanines (Aplicacion Del Modelo de Traslape Angular a Ftalocinaninas de Lantanidos)

Abstract

The magnetic properties of praseodymium, neodymium, gadolinium, holmium, erbium, and lutetium phthalocyanines are described according to magnetic susceptibility measurements measured in the 80-300 K or 4.2-300K range. Sigma and pi interactions between the pyrrolic nitrogen and the orbitals of praseodymium, neodymium, holmium, and erbium were obtained using the angular overlap model (AOM). The calculations included the complete ground-state manifold of the respective lanthanide ions. The position of the pyrrolic nitrogen ligand in the metallic two dimensional spectrochemical series is presented. The results show that the pyrrolic nitrogen is a weak sigma donor and a moderate pi donor.

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Document Details

Document Type
Technical Report
Publication Date
Jul 15, 1989
Accession Number
ADA210515

Entities

People

  • Juan Padilla
  • William E. Hatfield

Organizations

  • University of North Carolina at Chapel Hill

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Classification
  • Gadolinium
  • Ground State
  • Magnetic Properties
  • Measurement
  • Metals
  • Military Research
  • Neodymium
  • Nitrogen
  • North Carolina
  • Phthalocyanines
  • Praseodymium
  • Security
  • Two Dimensional
  • United States
  • Universities

Readers

  • Materials Science and Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Small Business Innovation Research Program (SBIR) EDI Research and Innovation.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster