Journal article

Tuning Charge-State Localization in a Semiconductive Iron(III)-Chloranilate Framework Magnet Using a Redox-Active Cation

Martin P van Koeverden, Brendan F Abrahams, Deanna M D'Alessandro, Patrick W Doheny, Carol Hua, Timothy A Hudson, Guy NL Jameson, Keith S Murray, Wasinee Phonsri, Richard Robson, Ashley L Sutton



The elucidation of mechanisms to modulate the properties of multifunctional electroactive, conductive, and magnetic porous materials is desirable to aid their future application. The synthesis and characterization of a two-dimensional (2D) mixed-valence metal-tetraoxolene coordination polymer containing a redox-active dication, (PhenQ)[Fe2(Clan)3]·solvent (1; Clann- = deprotonated 3,6-dichloro-2,5-dihydroxy-1,4-benzoquinone; PhenQ2+ = 5,6-dihydropyrazino[1,2,3,4-lmn][1,10]-phenanthrolindiium), are reported. The PhenQ2+ cation in 1 introduces additional accessible framework redox states and effectively directs the localization of ligand valence states. Static and dynamic magnetic susceptibili..

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Awarded by Australian Research Council

Funding Acknowledgements

The authors gratefully acknowledge the support of the Australian Research Council (DP180101413, DP170100034, FT170100283). Preliminary variable-temperature SC-XRD experiments were undertaken on the MX1 beamline, and part of this research was undertaken on the powder diffraction beamline at the Australian Synchrotron, part of ANSTO. This research was supported by the use of the EPR spectroscopy facilities provided by the Sydney Analytical Core Facility at the University of Sydney. Dr. Stephen P. Best is gratefully acknowledged for helpful discussions and furnishing access to an inert atmosphere glovebox.