A tricarbonylmanganesetricarbonylchromiumThe mixture was again chromatographed on silica gel and, apart from unreacted starting materials, three compounds were isolated and each was recrystallized from petroleum --(60-80').These were (I) 2-benzyl-n-pyrrolylmanganese WE report the preparation and characterization of tricarbonyl, (11) 2-(n-benzylchromium tricarbonyl) pyrrole, 2-(n-benzylchromium tricarbony1)-n-pyrrolylmanganese tri-and a third compound (111) which was bright yellow in carbonyl which we believe to be the first reported compound colour and melted a t 103-104".This compound proved complex of 2-benzylpyrrole and the separate tricarbonylmetal complexes have been prepared and characterized.