Enantiopure and racemic radical-cation salts of B(mandelate)2− and B(2-chloromandelate)2− anions with BEDT-TTF

Blundell, Toby J.; Lopez, Jordan R.; Sneade, Kathryn; Wallis, John D.; Akutsu, Hiroki; Nakazawa, Yasuhiro; Coles, Simon J.; Wilson, Claire; Martin, Lee

Abstract

We report the first examples of radical-cation salts of BEDT-TTF with spiroborate anions [B(mandelate)2]− and [B(2-chloromandelate)2]−, synthesized from either enantiopure or racemic bidentate mandelate or chloromandelate ligands. In the salts prepared using enantiopure ligands only one of two diastereoisomers of the spiroborate anion is incorporated, with the boron centre having the same stereochemistry as the enantiopure ligand. For the racemic salts one racemic pair of spiroborate anions containing an R and an S mandelate ligand is incorporated. In certain solvents helical crystals were obtained when using spiroborate anions with enantiopure ligands. Electrical and magnetic properties, and band structure calculations are reported.

Citation

Blundell, T. J., Lopez, J. R., Sneade, K., Wallis, J. D., Akutsu, H., Nakazawa, Y., …Martin, L. (2022). Enantiopure and racemic radical-cation salts of B(mandelate)2− and B(2-chloromandelate)2− anions with BEDT-TTF. Dalton Transactions, 51(12), 4843-4852. https://doi.org/10.1039/d2dt00024e

• Journal Article Type: Article
• Acceptance Date: Feb 28, 2022
• Online Publication Date: Mar 8, 2022
• Publication Date: Mar 28, 2022
• Deposit Date: Nov 30, 2023
• Journal: Dalton Transactions
• Print ISSN: 1477-9226
• Electronic ISSN: 1477-9234
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 51
• Issue: 12
• Pages: 4843-4852
• DOI: https://doi.org/10.1039/d2dt00024e
• Public URL: https://durham-repository.worktribe.com/output/1963720