Issue 18, 2013
From the journal:

Dalton Transactions

Hydrogen bonded anion ribbons, networks and clusters and sulfur–anion interactions in novel radical cation salts of BEDT-TTF with sulfamate, pentaborate and bromide†

Andrew C. Brooks,ab   Lee Martin,a   Peter Day,b   Elsa B. Lopes,c   Manuel Almeida,c   Koichi Kikuchi,d   Wataru Fujita,d   Kota Sasamori,d   Hiroki Aktusue  and  John D. Wallis*a  

* Corresponding authors

a School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
E-mail: john.wallis@ntu.ac.uk

b University College London, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK

c Department Química, IST/ITN, Instituto Superior Técnico/CFMCUL, P-2686-953 Sacavém, Portugal

d Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan

e Graduate School of Material Science, University of Hyogo, Kamigori-cho, Ako-gun, Hyogo, Japan

Abstract

The novel radical cation salt (BEDT-TTF)3(sulfamate)2·2H2O (BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene) is semiconducting with donor stacks comprised of pairs of partially oxidized molecules and a single more highly oxidized molecule which is twisted out of the stack by ca. 30°. Hydrogen bonded pairs of sulfamate ions are linked into parallel ribbons by further hydrogen bonding between sulfamates and bridging water molecules. In contrast, the BEDT-TTF salt with pentaborate contains infinite layers formed of a network of hydrogen bonded pentaborate anions. Two new bromide salts of BEDT-TTF are reported, one is a semiconducting 1 : 1 salt in which the bromide is integrated among the BEDT-TTF donors, while the other contain a square of four bromide ions linked together by hydrogen bonding to a centrally located H5O2+ cation for every five BEDT-TTF molecules.

Graphical abstract: Hydrogen bonded anion ribbons, networks and clusters and sulfur–anion interactions in novel radical cation salts of BEDT-TTF with sulfamate, pentaborate and bromide

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Article information

DOI
https://doi.org/10.1039/C3DT32430C
Article type
Paper
Submitted
11 Oct 2012
Accepted
26 Feb 2013
First published
28 Feb 2013
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2013,42, 6645-6654

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Hydrogen bonded anion ribbons, networks and clusters and sulfur–anion interactions in novel radical cation salts of BEDT-TTF with sulfamate, pentaborate and bromide

A. C. Brooks, L. Martin, P. Day, E. B. Lopes, M. Almeida, K. Kikuchi, W. Fujita, K. Sasamori, H. Aktusu and J. D. Wallis, Dalton Trans., 2013, 42, 6645 DOI: 10.1039/C3DT32430C

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