Determination of zero-field splitting parameters for a MnIV center using variable-temperature, variable-field magnetic circular dichroism spectroscopy: Comparison to electron paramagnetic resonance spectroscopy

► We examine [MnIV(OMe)3(Me3TACN)]+ using absorption, MCD, and VTVH MCD spectroscopies. ► Zero-field splitting parameters are accurately determined from VTVH MCD data. ► VTVH MCD offers an alternative to HF-EPR spectroscopy for MnIV systems.