Carbene stabilized interconnected bis-germylene and its silicon analogue with small methyl substituents
| Autor: | Prinson P. Samuel, Anna V. Luebben, Birger Dittrich, Subrata Kundu, Gernot Frenking, Herbert W. Roesky, Diego M. Andrada |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Silicon Double bond 010405 organic chemistry Stereochemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Crystallography chemistry.chemical_compound chemistry Organic group Theoretical methods Carbene Alkyl |
| Zdroj: | Dalton transactions (Cambridge, England : 2003). 46(24) |
| ISSN: | 1477-9234 |
| Popis: | The cyclic alkyl(amino) carbene (cAAC) [:C{N-C6H3(2,6-IPr2)}(CMe2)2CH2] stabilized MeGeGeMe has been isolated in the molecular form with composition (cAAC)MeGe–GeMe(cAAC) (1) at room temperature. Compound 1 was synthesized from the reduction of MeGeCl3 using three equivalents of KC8 in the presence of one equivalent of cAAC. The corresponding silicon compound (cAAC)MeSi–SiMe(cAAC) (2) was also prepared. Compounds 1 and 2 are the first examples of REER compounds (E = Ge, Si) carrying the smallest organic group. Furthermore the structures of compounds 1 and 2 have been investigated by using theoretical methods. The theoretical analysis of the structure of 1 is in agreement with the formation as an unprecedented carbene stabilized bis-germylene whereas compound 2 can be equally described as carbene stabilized bis-silylene with coordinate bonds as with classical double bonds of a 2,3-disila-1,3-butadiene. The compounds were also characterized by X-ray crystallography. |
| Databáze: | OpenAIRE |
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