期刊
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
卷 65, 期 6, 页码 725-744出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/znb-2010-0609
关键词
Alkynes; Silanes; NMR; X-Ray
资金
- Deutsche Forschungsgemeinschaft
- DAAD
- HEC (Pakistan)
Alkynylsilanes bearing one to four alkynyl groups at silicon, with organyl groups (Me, Ph, Vin), H. Cl at silicon, and with substituents H, '' Bu, 'Bu, Ph, C6H4-4-Me, 3-thienyl, CH2NMe2 at the C equivalent to C bond, were prepared, and their C-13 and Si-29 NMR data are reported. The results of X-ray structure analyses of three representative derivatives [di(phenylethynyl)dimethylsilane, di(phenylethynyl)methyl(phenyl)silane, and tri(phenylethynyl)methylsilane] are presented. The chemistry of mono- and dialkynylsilanes was further developed to prepare compounds with alternating Si atoms and C equivalent to C bonds, affording new dialkynylsilanes as well as numerous new vinylsilanes which have also been characterized by C-13 and Si-29 NMR spectroscopy in solution. In the case of ethynyl(triphenylsilylethynyl)dimethylsilane, the molecular structure was determined by X-ray diffraction.
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