Chiral metal down to 4.2 K - a BDH-TTP radical-cation salt with spiroboronate anion B(2-chloromandelate)₂⁻
2021
Blundell, Toby J. | Brannan, Michael | Nishimoto, Hiroshi | Kadoya, Tomofumi | Yamada, Jun-ichi. | Akutsu, Hiroki | Nakazawa, Yasuhiro | Martin, Lee
We report the first example of a chiral BDH-TTP radical-cation salt. Chirality is induced in the structure via the use of a chiral spiroboronate anion where three stereocentres are present, one on each chiral ligand and one on the boron centre. Despite starting from a labile racemic mixture of BS and BR enantiomers, only one enantiomer is present in the crystal lattice. The anions pack in a novel double anion layer which is the thickest anion layer found in a BDH-TTP salt. This material is chiral and shows metallic behaviour down to at least 4.2 K.
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