Thermal deposition of intact tetrairon(III) single-molecule magnets in high-vacuum conditions

Small. 2009 Jun;5(12):1460-6. doi: 10.1002/smll.200801594.

Abstract

A tetrairon(III) single-molecule magnet is deposited using a thermal evaporation technique in high vacuum. The chemical integrity is demonstrated by time-of-flight secondary ion mass spectrometry on a film deposited on Al foil, while superconducting quantum interference device magnetometry and alternating current susceptometry of a film deposited on a kapton substrate show magnetic properties identical to the pristine powder. High-frequency electron paramagnetic resonance spectra confirm the characteristic behavior for a system with S = 5 and a large Ising-type magnetic anisotropy. All these results indicate that the molecules are not damaged during the deposition procedure keeping intact the single-molecule magnet behavior.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electron Spin Resonance Spectroscopy
  • Iron / chemistry*
  • Magnetics*
  • Spectrometry, Mass, Secondary Ion
  • Temperature*
  • Time Factors
  • Vacuum
  • Volatilization

Substances

  • Iron