lmethylamine (1) with Fe2(CO)9 in refluxing toluene gives endo cyclometallated ironcarbonylcomplexes 2 and 5, exo cyclometallated ironcarbonylcomplex 3, and unexpected ironcarbonylcomplex 4. Complexes 2, 3, and 5 are geometric isomers. Complex 5 differs fromcomplex 2 in the switch of the original substituent from α to β position of the pyrrolyl ring, and the pyrrolyl ring bridges to the diiron