title: Harnessing ICl reduction processes for synthesis of different BEDT-TTF-based molecular conductors.
abstract: Both calculations and experimental data, showing the possibility of formation of I3-, I2Cl-, and ICl2- anions through ICl reduction processes, are described in detail. The above processes were used successfully for the preparation of different molecular conductors based on trihalide anions and bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF). The reaction between ICl and BEDT-TTF occurring in a strong polar reaction media (epsilon > or = 34.8 D) results in the formation of novel molecular conductors containing different sets of the I3-, I2Cl-, and ICl2- anions: beta-(BEDT-TTF)2[(I3)0.4(I2Cl)0.6], beta'BEDT-TTF)2[(I2Cl)0.2(ICl2)0.8], and beta' '-('-(BEDT-TTF)2[(I3)0.075(I2Cl)0.150(ICl2). These molecular conductors reveal semiconducting (beta'-phase) as well as metallic (beta- and beta' '-phases) transport properties. It is also shown that in the reaction media with polarity less than 18.4 D only the I3- anion is incorporated in the BEDT-TTF-based molecular crystals. This fact is an unexpected outcome of our study.
authors.affiliation: Institut de Ciència de Materials de Barcelona (CSIC) Campus UAB E-08193 Bellaterra, Spain. laukhina@icmab.es
authors.forename: Elena
authors.initials: E
authors.lastname: Laukhina
authors.forename: Vladislava
authors.initials: V
authors.lastname: Tkacheva
authors.forename: Igor
authors.initials: I
authors.lastname: Chuev
authors.forename: Roman
authors.initials: R
authors.lastname: Wojciechowski
authors.forename: Jacek
authors.initials: J
authors.lastname: Ulanski
authors.forename: Jose
authors.initials: J
authors.lastname: Vidal-Gancedo
authors.forename: Jaume
authors.initials: J
authors.lastname: Veciana
authors.forename: Vladimir
authors.initials: V
authors.lastname: Laukhin
authors.forename: Concepció
authors.initials: C
authors.lastname: Rovira