2013
DOI: 10.1039/c3dt32430c
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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

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… Show more

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Cited by 6 publications
(5 citation statements)
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“…Only the (0 k 0) peaks of this phase are recorded in the XRD patterns of F1 , indicating a pronounced texturing of the film. The slight difference between the experimental d 010 value (17.05 ± 0.13 Å) and the corresponding value of the single crystal (16.61 Å) may be explained either by assuming a slightly different molecular arrangement in the film system (thin film phase) or to a higher humidity during F1 measurements, since the interplanar spacing is highly sensitive to the RH ( vide infra ). The second hydrated phase, hereafter named phase II, is a weak metal above 230 K identified by the h 00 family of reflections of the [(BEDT-TTF) 2 Br­(H 2 O) 3 ] salt .…”
Section: Resultsmentioning
confidence: 98%
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“…Only the (0 k 0) peaks of this phase are recorded in the XRD patterns of F1 , indicating a pronounced texturing of the film. The slight difference between the experimental d 010 value (17.05 ± 0.13 Å) and the corresponding value of the single crystal (16.61 Å) may be explained either by assuming a slightly different molecular arrangement in the film system (thin film phase) or to a higher humidity during F1 measurements, since the interplanar spacing is highly sensitive to the RH ( vide infra ). The second hydrated phase, hereafter named phase II, is a weak metal above 230 K identified by the h 00 family of reflections of the [(BEDT-TTF) 2 Br­(H 2 O) 3 ] salt .…”
Section: Resultsmentioning
confidence: 98%
“…Two phases correspond to two different arrangements of hydrated BEDT-TTF bromide salts. The first one, called hereafter phase I, [(BEDT-TTF) 5 (Br 4 (H 5 O 2 ))], is a metal that contains a [Br 4 (H 5 O 2 )] 3– cluster for every five BEDT-TTF molecules, where the four bromide ions are organized in an approximate square, bridged by hydrogen bonding to a [H 2 O···H + ···OH 2 ] unit. Only the (0 k 0) peaks of this phase are recorded in the XRD patterns of F1 , indicating a pronounced texturing of the film.…”
Section: Resultsmentioning
confidence: 99%
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