Herrmann, Dirk and Roedl, Christian and de Bruin, Bas and Hartl, Frantisek and Wolf, Robert (2018) Synthesis, electronic structure and redox properties of the diruthenium sandwich complexes [Cp*Ru(-C10H8)RuCp*](x) (x=0, 1+; Cp* = C5Me5; C10H8 = naphthalene). DALTON TRANSACTIONS, 47 (32). pp. 11058-11069. ISSN 1477-9226, 1477-9234
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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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MIXED-VALENCE SYSTEMS; CRYSTAL-STRUCTURE; ELECTROCHEMICAL PROPERTIES; POLYAROMATIC MOLECULES; RUTHENIUM COMPLEXES; IRON COMPLEXES; BASIS-SETS; X-RAY; TRANSITION; FERROCENE; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Jan 2020 08:25 |
| Last Modified: | 10 Jan 2020 08:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14022 |
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