Synthesis, Structure, and Magnetic Properties of [(<i>S</i>)-[PhCH(CH<sub>3</sub>)N(CH<sub>3</sub>)<sub>3</sub>]][Mn(CH<sub>3</sub>CN)<sub>2/3</sub>Cr(ox)<sub>3</sub>]·(CH<sub>3</sub>CN)_(solvate), a 2D Chiral Magnet Containing a Quaternary Ammonium Chiral Cation
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The synthesis, structure, and magnetic properties of a novel oxalate-based bimetallic magnet obtained by using the chiral (S)-trimethyl-(1-phenyl-ethyl)-ammonium, ((S)-[PhCH(CH3)N(CH3)3]+), cation as template is reported. This compound can be formulated as [(S)-[PhCH(CH3)N(CH3)3]][Mn(CH3CN)2/3Cr(ox)3]·(CH3CN)_(solvate), and it crystallizes in the chiral trigonal space group P3. It shows a distorted two-dimensional honeycomb structure formed by MnII and CrIII ions connected through oxalate anions with [(S)-[PhCH(CH3)N(CH3)3]+ cations and solvent molecules intercalated between the oxalate layers. Two-thirds of the MnII ions of the honeycomb anionic network are heptacoordinated. This compound behaves as a soft ferromagnet with an ordering temperature of 5.6 K.
