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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)

Title data

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. Vol. 637 (October 2011) Issue 12 . - pp. 1895-1902.
ISSN 1521-3749
DOI: https://doi.org/10.1002/zaac.201100240

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Carboranes; Selenium; Heterocycles; NMR spectroscopy; DFT calculations; X-ray diffraction
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry I
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 22 Mar 2018 14:21
Last Modified: 22 Mar 2018 14:21
URI: https://eref.uni-bayreuth.de/id/eprint/9879