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

Blundell, T. J., Lopez, J. R., Sneade, K., Wallis, J. D., Akutsu, H., Nakazawa, Y., Coles, S. J., Wilson, C. and 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), pp. 4843-4852. (doi: 10.1039/D2DT00024E) (PMID:35257131)

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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Wilson, Dr Claire
• Authors: Blundell, T. J., Lopez, J. R., Sneade, K., Wallis, J. D., Akutsu, H., Nakazawa, Y., Coles, S. J., Wilson, C., and Martin, L.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Dalton Transactions
• Publisher: Royal Society of Chemistry
• ISSN: 1477-9226
• ISSN (Online): 1477-9234
• Published Online: 08 March 2022
• Copyright Holders: Copyright © The Royal Society of Chemistry 2022
• First Published: First published in Dalton Transactions 51(12):4843-4852
• Publisher Policy: Reproduced under a Creative Commons license