Dielmann, Fabian and Timoshkin, Alexey and Piesch, Martin and Balazs, Gabor and Scheer, Manfred (2017) The Cobalt cyclo-P-4 Sandwich Complex and Its Role in the Formation of Polyphosphorus Compounds. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 56 (6). pp. 1671-1675. ISSN 1433-7851, 1521-3773
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A synthetic approach to the sandwich complex [CpCo((4)-P-4)] (2) containing a cyclo-P-4 ligand as an end-deck was developed. Complex 2 is the missing homologue in the series of first-row cyclo-P-n sandwich complexes, and shows a unique tendency to dimerize in solution to form two isomeric P-8 complexes [(CpCo)(2)(,(4):(2):(1)-P-8)] (3 and 4). Reactivity studies indicate that 2 and 3 react with further [CpCo] fragments to give [(CpCo)(2)(,(2):(2)-P-2)(2)] (5) and [(CpCo)(3)P-8] (6), respectively. Furthermore, complexes 2, 3, and 4 thermally decompose forming 5, 6, and the P-12 complex [(CpCo)(3)P-12] (7). DFT calculations on the P-4 activation process suggest a (3)-P-4 Co complex as the key intermediate in the synthesis of 2 as well as in the formation of larger polyphosphorus complexes via a unique oligomerization pathway.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SYMMETRICAL P-4 CLEAVAGE; ORGANIC HYBRID MATERIALS; FULLERENE TOPOLOGY; SPHERICAL CLUSTER; BUILDING-BLOCKS; METAL-COMPLEXES; LIGANDS; PHOSPHORUS; ACTIVATION; PENTAPHOSPHAFERROCENE; cobalt; coordination modes; cyclo-P-4 complexes; phosphorus; sandwich complexes |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:01 |
| Last Modified: | 11 Feb 2019 12:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/483 |
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