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

Enantiopure and racemic radical-cation salts of B(mandelate)2 and B(2-chloromandelate)2 anions with BEDT-TTF
Enantiopure and racemic radical-cation salts of B(mandelate)2 and B(2-chloromandelate)2 anions with BEDT-TTF
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.
1477-9226
4843-4852
Blundell, Toby J.
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Lopez, Jordan R.
e8b78839-cb73-497f-b7d3-d120281aa258
Sneade, Kathryn
e9bca0e3-4078-4cad-b43f-e1882d968853
Wallis, John D.
bc777046-08c0-40bf-9cfd-3a69481bb06a
Akutsu, Hiroki
86a57ad8-7b6f-4df2-be69-25b1c08d9a6c
Nakazawa, Yasuhiro
5b8ba8d3-4280-499c-a943-8c5ccc80e7cb
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Wilson, Claire
7a53140a-0079-4aac-8b5a-a375b3659dd2
Martin, Lee
40bf71a6-83ea-41de-a1ff-711043af2d00
Blundell, Toby J.
7ee01e4f-c9af-40c9-b17b-dcc9c77b2e7e
Lopez, Jordan R.
e8b78839-cb73-497f-b7d3-d120281aa258
Sneade, Kathryn
e9bca0e3-4078-4cad-b43f-e1882d968853
Wallis, John D.
bc777046-08c0-40bf-9cfd-3a69481bb06a
Akutsu, Hiroki
86a57ad8-7b6f-4df2-be69-25b1c08d9a6c
Nakazawa, Yasuhiro
5b8ba8d3-4280-499c-a943-8c5ccc80e7cb
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Wilson, Claire
7a53140a-0079-4aac-8b5a-a375b3659dd2
Martin, Lee
40bf71a6-83ea-41de-a1ff-711043af2d00

Blundell, Toby J., Lopez, Jordan R., Sneade, Kathryn, Wallis, John D., Akutsu, Hiroki, Nakazawa, Yasuhiro, Coles, Simon J., Wilson, Claire and Martin, Lee (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. (doi:10.1039/d2dt00024e).

Record type: Article

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.

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Accepted/In Press date: 28 February 2022
Published date: 8 March 2022
Additional Information: Funding Information: LM and TJB would like to thank the Royal Society and Leverhulme Trust for financial support (LT170022 and RPG-2019-242). JRL and LM thank NTU for a PhD studentship. We thank EPSRC for funding the National Crystallography Service. Publisher Copyright: © 2022 The Royal Society of Chemistry Copyright: Copyright 2022 Elsevier B.V., All rights reserved.

Identifiers

Local EPrints ID: 466127
URI: http://eprints.soton.ac.uk/id/eprint/466127
ISSN: 1477-9226
PURE UUID: b0e62dfb-9e17-4bc7-9eb9-8235e653f2b3
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

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Date deposited: 05 Jul 2022 04:25
Last modified: 22 Jul 2022 01:35

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Contributors

Author: Toby J. Blundell
Author: Jordan R. Lopez
Author: Kathryn Sneade
Author: John D. Wallis
Author: Hiroki Akutsu
Author: Yasuhiro Nakazawa
Author: Simon J. Coles ORCID iD
Author: Claire Wilson
Author: Lee Martin

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