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Wrackmeyer, Bernd ; Klimkina, Elena V. ; Milius, Wolfgang:
Molecular Structures of a 1,5-Diselena-2,4-disila-3-oxa-cycloheptane Derivative and a Diselane : Behavior of the Mixture Containing 1,2-Dilithio- and 1,2-Bis(lithioseleno)-1,2-dicarba-closo-dodecaborane(12).
In: Zeitschrift für anorganische und allgemeine Chemie.
Bd. 637
(2011)
Heft 12
.
- S. 1895-1902.
ISSN 1521-3749
DOI: https://doi.org/10.1002/zaac.201100240
Abstract
Attempts to prepare a reagent containing the 1-lithioseleno-2-lithio-1,2-dicarba-closo-dodecaborane(12) were only partially successful. The non-cyclic 1-trimethysilylseleno-2-trimethysilyl-1,2-dicarba-closo-dodecaborane(12) could be obtained in mixtures, and a corresponding diselane, formed by hydrolysis/oxidation could be isolated and characterized by X-ray structural analysis. However, the synthesis of related heterocycles failed. Instead, cyclic species derived in principle from 1,2-dilithio- and the 1,2-bis(lithioseleno)-1,2-dicarba-closo-dodecaborane(12) were isolated and characterized. This led to a new 1,5-diselena-2,4-disila-3-oxa-cycloheptane derivative, for which the structure in solution was confirmed by NMR spectroscopy (1H, 13C, 29Si, 77Se NMR) and DFT calculations [B3LYP/6-311+G(d,p)], and the molecular solid-state structure was determined by X-ray diffraction.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Carboranes; Selenium; Heterocycles; NMR spectroscopy; DFT calculations; X-ray diffraction |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Anorganische Chemie I Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 22 Mär 2018 14:21 |
| Letzte Änderung: | 06 Apr 2023 08:09 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/9879 |