Enantiopure and racemic radical-cation salts of bis(2’-hydroxylpropylthio)(ethylenedithio)TTF with polyiodide anions

Martin, L ORCID: 0000-0002-5330-5700, Wallis, JD ORCID: 0000-0001-7259-8783, Guziak, M, Maksymiw, P, Konalian-Kempf, F, Christian, A, Nakatsuji, S, Yamada, J and Akutsu, H, 2017. Enantiopure and racemic radical-cation salts of bis(2’-hydroxylpropylthio)(ethylenedithio)TTF with polyiodide anions. Dalton Transactions. ISSN 1477-9226

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Abstract

The chiral TTF-based donor molecule bis(2’-hydroxylpropylthio)(ethylenedithio)tetrathiafulvalene (BHPT-EDT-TTF) has produced enantiopure R,R and S,S radical-cation salts with polyiodide anions I3- and I82-. Enantiomorphic 6:6 donor:I3 phases grown from either the R,R or S,S donor are semiconducting with similar activation energies of 0.24-0.30 eV and 0.22-0.23 eV respectively, and contains three unique face-to-face donor pairs whose relative orientation is determined by side chain conformations and hydrogen bonding. Racemic material under the same conditions gave an insulating centrosymmetric phase with R,R and S,S donor cations in a face-to-face pair partnered with an octa-iodide dianion, and with a ca 3:1 disorder between the enantiomers. Enantiopure BHPT-EDT-TTF yielded two further insulating crystalline phases of composition 2:2 with triiodide and 2:1 with octa-iodide.

Item Type: Journal article
Publication Title: Dalton Transactions
Creators: Martin, L., Wallis, J.D., Guziak, M., Maksymiw, P., Konalian-Kempf, F., Christian, A., Nakatsuji, S., Yamada, J. and Akutsu, H.
Publisher: Royal Society of Chemistry
Date: 10 February 2017
ISSN: 1477-9226
Identifiers:
NumberType
10.1039/C6DT04645BDOI
Divisions: Schools > School of Science and Technology
Depositing User: Jonathan Gallacher
Date Added: 14 Feb 2017 10:02
Last Modified: 30 Jun 2017 15:10
URI: http://irep.ntu.ac.uk/id/eprint/30176

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