Zusammenfassung
The dinuclear ruthenium complex [Cp*Ru(-C10H8)RuCp*] (1; Cp* = (5)-C5Me5) was prepared by reduction of the cationic precursor [Cp*Ru((6)-C10H8)]PF6 with KC8. Diamagnetic 1 has a symmetric molecular structure with an anti-facial configuration of the Cp*Ru moieties coordinating to naphthalene. Density Functional Theory (DFT) studies showed an electronic structure similar to that of the analogous ...
Zusammenfassung
The dinuclear ruthenium complex [Cp*Ru(-C10H8)RuCp*] (1; Cp* = (5)-C5Me5) was prepared by reduction of the cationic precursor [Cp*Ru((6)-C10H8)]PF6 with KC8. Diamagnetic 1 has a symmetric molecular structure with an anti-facial configuration of the Cp*Ru moieties coordinating to naphthalene. Density Functional Theory (DFT) studies showed an electronic structure similar to that of the analogous diiron complex [Cp*Fe(-C10H8)FeCp*]. Cyclic voltammetry and UV-vis spectroelectrochemistry showed that 1 can be reversibly oxidized to 1(+) and 1(2+). Chemical oxidation with [Cp2Fe]BAr4F afforded the paramagnetic compound [1]BAr4F, which was investigated by EPR, single-crystal X-ray diffractometry and DFT calculations. Reaction of 1 with Brookhart's acid gave the hydride complex [3]BAr4F, which was characterized spectroscopically and crystallographically. Cyclic voltammetry showed that [3](+) is converted back to 1 upon reduction and oxidation.
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