Synthesis and Characterization of Tetrathiafulvalene Charge Transfer Compounds with Copper Halides.

Abstract

Charge transfer compounds with the general formula (TTF)4CuX2 (TTF = tetrathiafulvalene; X = chlorine, bromine may be prepared by the reaction of excess TTF with Cu(sparteine) X2 in methylene chloride. The semiconducting compounds have low activation energies and relatively high electrical conductivities. Magnetic susceptibility, EPR and spectroscopic data have low activation energies and relatively high electrical conductivities. Magnetic susceptibility, EPR, and spectroscopic data provide evidence that copper has been reduced to copper(I) in the complexes, and the unpaired electrons are delocalized over columnar stacks of TTF. Reaction of TTF with (Cu(2- aminoethylpyridine) Cl2) or (Cu(nicotine)Cl2) in methylene chloride yielded (TTF)2CuCl2, while reaction of TTF with (Cu4OCl6(2-picoline)4) yielded (TTF) cuCl2.

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Document Details

Document Type
Technical Report
Publication Date
Aug 19, 1991
Accession Number
ADA240134

Entities

People

  • William E. Hatfield
  • Young I. Kim

Organizations

  • University of North Carolina at Chapel Hill

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Structures
  • Charge Transfer
  • Chemistry
  • Chlorides
  • Classification
  • Electrical Conductivity
  • Electrical Properties
  • Electron Transfer
  • Electrons
  • Energy Bands
  • Magnetic Properties
  • Military Research
  • North Carolina
  • Plastic Explosives
  • Security
  • Spectra
  • Spin-Orbit Interaction

Fields of Study

  • Chemistry

Readers

  • Materials Science and Engineering.
  • Nanofabrication and Microfabrication.
  • Organic Chemistry

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene