The Addition of Nitriles to Tetramesityldisilene: A Comparison of the Reactivity between Surface and Molecular Disilenes |
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| Authors: | Dr. Julie A. Hardwick Prof. Kim M. Baines |
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| Affiliation: | Department of Chemistry, University of Western Ontario, London, Ontario, N6A 5B7 (Canada) |
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| Abstract: | The addition of acetonitrile, propionitrile, and phenylacetonitrile to tetramesityldisilene (Mes2Si?SiMes2) was examined. In general, 1,2,3‐azadisiletines and the tautomeric enamines were formed, although a ketenimine was formed as the major product in the addition of phenylacetonitrile to the disilene. In the presence of LiCl, the mode of addition changed for both acetonitrile and propionitrile: insertion into the α‐CH bond of acetonitrile and/or formation of the formal HCN adduct was observed. Preliminary investigations of the reactivity of the nitrile adducts are also reported. A comparison between the reactivity of nitriles with Mes2Si?SiMes2 and the Si(100)‐2×1 surface was made both in terms of the types of adducts formed and their reactivity. Some insights into the surface chemistry are offered. |
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| Keywords: | disilenes Group 14 elements nitriles silicon surface chemistry |
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