Preparation and solid-state characterization of the novel mixed biradical *NSNSC-CNSSN*.
Reduction of the radical-cation [*NSSNC-CNSNS][AsF(6)] with ferrocene affords the novel biradical *NSNSC-CNSSN* containing both 1,2,3,5- and 1,3,2,4-isomeric dithiadiazolyl rings. Biradicals form centrosymmetric dimers with pi(*)-pi(*) interactions between different isomeric rings. Biradical *NSNSC-CNSSN* is diamagnetic in the solid state (C = 0.00035, TIP = 6.5 x 10(-)(5) emu/Oe.mol); however, an increase in paramagnetism was observed upon grinding (C = 0.003, TIP = 4.2 x 10(-)(4) emu/Oe.mol).
Cameron
T Stanley
TS
Department of Chemistry, Dalhousie University, Halifax B4H 4J3, Canada.
Lemaire
Martin T
MT
Passmore
Jack
J
Rawson
Jeremy M
JM
Shuvaev
Konstantin V
KV
Thompson
Laurence K
LK