Phenyl-substituted Ni(dddt)(2), Ni(phdt)(2) and Ni(dphdt)(2), were syn
thesized and characterized by elemental analysis, FT-IR and UV spectro
scopy. The ligand precursors were prepared by the [2+4] cycloaddition
reaction between oligo(1,3-dithiole-2,4,5-trithione) and styrene or t-
stilbene, respectively. [Ni(dphdt)(2)](1-) shows rhombic esr g-values
(g(1)=2.099, g(2)=2.039, g(3)=2.006) at 77K. It exhibits a cyclic volt
amogram with a reversible oxidation potential at 0.34V (vs. Ag/AgCl) a
nd quasi-reversible one at -0.38V (Delta V-1/2=0.72V).