The syntheses of the PPh4+ and NEt4+ salts of the M(SePh)42− (M = Mn, Fe, Co, Ni) anions by reaction of the metal chlorides with LiSePh in the presence of the cations are described. [NEt4]2[Fe(SePh)4]-MeCN crystallizes with four formula units in the orthorhombic space group D42-P212121 in a cell of dimensions a = 14.787 (1) Å, b = 16.485 (1) Å, and c = 18.273 (2) Å. Four benzeneselenol ligands provide slightly distorted tetrahedral coordination about the FeII center. The Fe–Se distances average 2.460 (12) Å; the Se-C distances average 1.907 (8) Å. The Se–Fe–Se angles range from 103.6 (1) to 114.9 (1)°. UV-vis and 1H NMR data for the PPh4+ and NEt4+ salts of M(SePh)42− (M = Mn, Fe, Co, Ni) are assigned and discussed.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry