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Complexes Cl-RuⅡ(dppe)2(Fe Cl4)·2CH2Cl2(2) and Br-RuII(dppe)2(Fe Br4)·2CH2Cl2(3) were prepared by the reaction of trans-RuII(dppe)2Cl2(1) with FeX 3(X = Cl, Br). More interestingly, the central Ru atoms of RuII(dppe)-based complexes(2 and 3) def