The paramagnetic complex anions [Fe(NS3)Cl](-) [NS3 = N(CH2CH2S)(3)(3-)] and[Fe(NS3)(CO)]- have been prepared and structurally characterised; with FeCl2, [Fe(NS3)(CO)](-) gives the structurally characterised, linear, paramagnetic cluster complex [Fe{Fe(NS3)(CO)-S,S'}(2)].