Di-organoiron Mixed Valent Complexes Featuring “(η2-dppe)(η5-C5Me5) Fe” Endgroups: Smooth Class-III to Class-II Transition Induced by Successive Insertion of 1, …

…, L Toupet, T Roisnel, P Hapiot, C Lapinte

Index: Ghazala, Safaa Ibn; Paul, Frederic; Toupet, Loic; Roisnel, Thierry; Hapiot, Philippe; Lapinte, Claude Journal of the American Chemical Society, 2006 , vol. 128, # 7 p. 2463 - 2476

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Citation Number: 127

Abstract

The synthesis and study of a new redox family of symmetric dinuclear iron (II/III) complexes featuring “(η2-dppe)(η5-C5Me5) Fe (C⋮ C)” endgroups connected by a bis (diethynyl)-4, 4'- biphenyl spacer are reported. The solid-state structures were determined (X-rays) for the homovalent Fe (II)/Fe (II) and Fe (III)/Fe (III) parents. In contrast, the mixed valent (MV) complex 5 [PF6] has a low thermodynamic stability (Kc around 10) and cannot be isolated ...

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