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

Majed S. Fataftah, Joseph M. Zadrozny, Dylan M. Rogers, Danna E. Freedman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)10716-10721
Number of pages6
JournalInorganic chemistry
Volume53
Issue number19
DOIs
StatePublished - Oct 6 2014

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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