Several new iron(IV) complexes of , -disubstituted dithiocarbamates have been prepared by reaction of tris(dithiocarbamato)iron(III) complexes with boron trifluoride in the presence of air. These have been characterized as tris(N,N-disubstituted dithiocarbamato)iron(IV) tetrafluoroborates by a number of physical methods. The isomer shifts of these compounds (0.46 ± 0.02 mm/sec) are significantly lower than those of iron(III) dithiocarbamates (0.64 ± 0.03 mm/sec). The quadrupole splittings are 2 mm/sec or greater.

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