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Paper, 'Preliminary note on a silico-organic compound of a new type' by J [James] Emerson Reynolds

Reference number: PP/13/4

Date: 1888


Reynolds writes: 'The subject of this note is a fine crystalline substance, and is the first well-defined compound yet known in which we have reason to believe that silicon is in direct and exclusive union with the nitrogen of amidic groups. Its analysis and mode of formation lead to the conclusion that it is silcotetraphenylamide, —NHC6H5 —NHC6H5 Si—NHC6H5. —NHC6H5 This body is produced when silicon tetrabromide (or the tetrachloride) is added to excess of aniline, diluted with three or four volumes of benzene. Aniline hydrobromate (or hydrochlorate) is a secondary product of interaction and separates, being insoluble in benzene. If aniline be in excess throughout the operation, the whole of the halogen precipitates as aniline salt, and there remains in solution impure silicotetrapbenylamide. If aniline be not in excess, a bromo-compound is obtained analogous to Harden’s rather ill-defined chlorinated product.'

Annotations in pencil and ink.

Subject: Chemistry

Received 27 September 1888. Read 22 November 1888.

A version of this paper was published in volume 45 of the Proceedings of the Royal Society as 'Preliminary note on a silico-organic compound of a new type'.

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Ink and graphite pencil on paper
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2 pages

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James Emerson Reynolds

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James Emerson Reynolds, Paper, 'Preliminary note on a silico-organic compound of a new type' by J [James] Emerson Reynolds, 1888, PP/13/4, The Royal Society Archives, London,, accessed on 21 July 2024

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    Dates: 1882 - 1894

    The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.

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