A mononuclear transition metal single-molecule magnet in a nuclear spin-free ligand environment.

نویسندگان

  • Majed S Fataftah
  • Joseph M Zadrozny
  • Dylan M Rogers
  • Danna E Freedman
چکیده

The high-spin pseudotetrahedral complex [Co(C3S5)2](2-) exhibits slow magnetic relaxation in the absence of an applied dc magnetic field, one of a small number of mononuclear complexes to display this property. Fits to low-temperature magnetization data indicate that this single-molecule magnet possesses a very large and negative axial zero-field splitting and small rhombicity. The presence of single-molecule magnet behavior in a zero-nuclear spin ligand field offers the opportunity to investigate the potential for this molecule to be a qubit, the smallest unit of a quantum information processing (QIP) system. However, simulations of electron paramagnetic resonance (EPR) spectra and the absence of EPR spectra demonstrate that this molecule is unsuitable as a qubit due to the same factors that promote single molecule magnet behavior. We discuss the influence of rhombic and axial zero-field splitting on QIP applications and the implications for future molecular qubit syntheses.

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عنوان ژورنال:
  • Inorganic chemistry

دوره 53 19  شماره 

صفحات  -

تاریخ انتشار 2014