1,2,3-Dithiazolyl and 1,2,35-Dithiadiazolyl Radicals as Spin-Bearing ...

an individual binuclear coordination complex. The radical ligand is however disordered
in the solid state and so these random chain lengths are dependent on the orientation of
the ligands in adjacent complexes.
The 1,2,3-DTA species examined herein are related to the 4,5-dioxo-4,5-
dihydronaphtho[1,2-d][1,2,3]dithiazolyl radical and the related protonated species 4-
hydroxy-5H-naphtho[1,2-d][1,2,3]dithiazol-5-one. The proton from this latter compound
has shown that it can be substituted with alkyl groups and this was achieved using acetyl
chloride to place an acetyl group in this position. The above radical did not exhibit the
strong donor properties required for metal coordination and preliminary investigations of
the radical dianionic suggest that it is chemically irreversible by cyclic voltametry. The
acetyl group unfortunately did not provide the chemically reversibility of interest
although has established a potential route toward the substitution chemistry of this
compound.
The other 1,2,3-DTA compounds discussed herein are not complete,
although the data acquired on the precursor compounds leading up to the radical will be
discussed.
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