Brunner, Henri and Leis, F. and Nuber, B. and Wachter, Joachim (1999) As/Se-units as building blocks in cobalt complexes containing the C5Me4Et ligand. Crystal structure of (eta(5)-C5Me4Et)Co(eta(4)-As6Se). POLYHEDRON, 18 (3-4). pp. 347-350. ISSN 0277-5387,
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The reaction of Cp-2*Co-2(CO)(2) 1 (Cp* = C5Me4Et) with equimolar amounts of As4Se4 was investigated at different temperatures and compared to the reaction of 1 with As4S4. In boiling toluene the formation of Cp-2*Co2As2Se3 (4-Se) and Cp-3*Co3As2Se4 (5-Se) was observed, whereas in boiling xylene in addition to 4-Se and 5-Se Cp*CoAs6Se (7) was formed. Spectroscopic investigations show that the structures of 4-Se and 5-Se are analogous to those of the known compounds Cp-2*Co2As2S3 (4-S) and Cp-3*Co3As2S4 (5-S). As 7 is the first complex derived from selenium substituted E-7(3-) (E = P, As, Sb) Zintl ions, an X-ray diffraction analysis was carried out showing that it consists of a norbornadiene-like cage of the main group elements to which a Cp*Co fragment is coordinated via four As atoms as a four-electron ligand. (C) 1998 Elsevier Science Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION; SELENOARSENATES; FRAGMENTATION; REACTIVITY; INSERTION; OXIDATION; REALGAR; cobalt complexes; arsenic; selenium; mixed ligands |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Arbeitskreis Dr. Joachim Wachter Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Prof. Dr. Henri Brunner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Dec 2022 06:50 |
| Last Modified: | 06 Dec 2022 06:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48729 |
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