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Derivate des Imidazols, VI. Stabile Carben-Borane (1993)

Kuhn, Norbert ; Henkel, Gerald ; Kratz, Thomas ; [et al.]

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 126 (1993), S. 2041-2045

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ISSN: 0009-2940

Keywords: Imidazol-2-ylidene - Borane adducts ; Calculations, ab initio ; Borane - Imidazol-2-ylidene adducts ; Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Imidazole Derivatives, VI[1]. - Stable Carbene BoranesStable imidazol-2-ylidene - borane adducts 8 and 9 are obtained from 1,3,4,5-tetraalkylimidazol-2-ylidenes 7 and Me2S BH3 or Et2O BF3. An X-ray structure analysis of 8b has been performed. An ab initio calculation [MP2(fu)/6-31G**] reveals a low energy difference between two rotamers. The bond orders of the cyclic bonds imply only a minor interaction between the N - C - N and the C - C fragment.

Additional Material: 1 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cber.19931260913

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