Abstract
θ-(BETS)4[Fe(CN)5NO] (1), (BETS)2[RuBr5NO] (2), and (BETS)2[RuCl5NO] (3) [BETS = bis(ethylenedithio)tetraselenafulvalene] have been prepared by electrocrystallisation of BETS using [Fe(CN)5NO]2− or [RuX5NO]2−, X = Cl or Br, as supporting electrolytes and 1,1,2-TCE/ethanol (10 vol%) for 1, nitrobenzene/1,2-DCE (40 vol%)/ethanol (10 vol%) for 2, and benzonitrile/ethanol (10%) solutions for 3 as solvents. Compound 1 exhibits a metallic behaviour down to 40 K, 2 behaves as a semiconductor and 3 as an insulator. The crystal structures of 1, 2, and 3 were determined by X-ray diffraction methods. BETS molecules in 1 crystallised in a θ-type mode. By contrast, the crystal structures of 2 and 3 show a packing of BETS molecules consisting of slipped, stacked (BETS)2 dimers. The dimerisation is much stronger in 3 than in 2. The physical behaviours of the three phases were investigated by means of molecular and band structure calculations and are shown to be directly related to the [MX5NO] (M = Fe, X = CN; M = Ru, X = Cl, Br) structural conformations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
