Schoo, Christoph and Koeppe, Ralf and Piesch, Martin and Gamer, Michael T. and Konchenko, Sergey N. and Scheer, Manfred and Roesky, Peter W. (2018) Open Chain Polyarsenides of the Lanthanides. CHEMISTRY-A EUROPEAN JOURNAL, 24 (31). pp. 7890-7895. ISSN 0947-6539, 1521-3765
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The reaction of [(Cp'''Co)(2)(mu, eta(2:2)-As-2)(2)] with the decamethylsamarocenes [Cp*Sm-2(THF)(2)] or [Cp*Sm-2], or the bis(tetramethyl-n-propyl) samarocene [(C5Me4(n-propyl))(2)Sm] resulted in the mixed d/f polyarsenides [(Cp'''Co)(2)As4Sm(h(5)C(5)Me(4)R) (2)] (R=Me, n-propyl). They are the first structural representatives of open chain- like polyarsenides as ligands in the coordination sphere of lanthanides. Their formation can be explained by an intramolecular As-As coupling within the cobalt polyarsenide complex after reduction by the divalent samarium complex. Density functional theory calculations give insight into the structural change of the (As-2)(2) unit in [{Cp'''Co(mu, eta(2:2)-As-2)}(2)] upon reduction.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RAY CRYSTAL-STRUCTURE; ZETA-VALENCE QUALITY; RARE-EARTH; DIVALENT SAMAROCENES; POPULATION ANALYSIS; OCCUPATION NUMBERS; ELECTRON-DENSITY; BOND FORMATION; BASIS-SETS; COMPLEXES; cobalt; DFT calculations; polyarsenide; rare-earth element; samarium |
| 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: | 09 Mar 2020 10:23 |
| Last Modified: | 09 Mar 2020 10:23 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14421 |
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