The synthesis and structure of the thiosulfonato iron complexes CpFe(CO)2SS(O)2R

Treatment of the iron polysulfanes (μ-Sx)[CpFe(CO)2]2 (x=3, 4) with sulfonyl chlorides RSO2Cl (R=CF3 (1), CCl3 (2), C6F5 (3)) gave the corresponding iron thiosulfonato complexes CpFe(CO)2SS(O)2R in good yields. Crystal structure for 2: P21/c, a=6.704(2), b=8.933(2), c=22.603(5) Å, α=90, β=92.82(2), γ=90°, V=1352.0(6) Å3 and Z=4.