57Fe-Moessbauer Spectroscopic Studies on the Products of [1.1]Ferrocenophane-1,12-dione with I2, Br2, and DDQ
[1.1]Ferrocenophane-1,12-dione reacts with I2 and DDQ giving a diamagnetic [1.1]ferrocenophane-I2 and DDQ adduct and reacts with Br2 giving a paramagnetic [1.1]ferrocenophanium-1,12-dione+ Br3− salt. The results of 57Fe-Moessbauer spectroscopy and other physicochemical measurements of the reaction products indicate that the formers are an I2 and a DDQ molecular complex, while the latter is a trapped-valence type mixed-valence salt.