title: Hydrogen bonded anion ribbons, networks and clusters and sulfur-anion interactions in novel radical cation salts of BEDT-TTF with sulfamate, pentaborate and bromide.
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.
authors.affiliation: School of Science and Technology, Nottingham Trent University, Nottingham, UK.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Brooks
authors.forename: Lee
authors.initials: L
authors.lastname: Martin
authors.forename: Peter
authors.initials: P
authors.lastname: Day
authors.forename: Elsa B
authors.initials: EB
authors.lastname: Lopes
authors.forename: Manuel
authors.initials: M
authors.lastname: Almeida
authors.forename: Koichi
authors.initials: K
authors.lastname: Kikuchi
authors.forename: Wataru
authors.initials: W
authors.lastname: Fujita
authors.forename: Kota
authors.initials: K
authors.lastname: Sasamori
authors.forename: Hiroki
authors.initials: H
authors.lastname: Aktusu
authors.forename: John D
authors.initials: JD
authors.lastname: Wallis