For example, [ Mn ( THF ) ( TC-5, 5 ) ] favors the mononitrosyl complex after adding stoichiometric additions of NO whereas the nitrito complex is the favored tropocoronand product when in the presence of excess NO respectively . [ Fe ( TC-5, 5 ) ] also promotes NO disproportionation when in the presence of excess NO; however, in contrast to Mn, the final product is [ Fe ( NO ) ( TC-5, 5-NO 2 ) ], where the iron retains the nitrosyl and the nitrite becomes bound to the ligand.
