Add time:09/04/2019         Source:sciencedirect.com

The reaction product from ethylene and pentaborane in the presence of aluminium chloride has been examined by infra-red spectroscopy and gas chromatography and has been shown to consist of unchanged pentaborane, ethyl pentaborane, together with a small quantity of material which is probably methyl pentaborane.The ethyl group has been shown to be located at the apical position of the pentaborane molecule from a consideration of the infra-red spectra of pentaborane, bromopentaborane and ethyl pentaborane, the result being confirmed by the nuclear magnetic resonance spectrum of the molecule.

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