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Study Of Tris(methylamino)borane As A Precursor To Boron Nitride by B. Bonnetot; B. Frange; F. Guilhon; H. Mongeot is a Chemistry article available to read on EtoBox.

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Tris(methylamino)borane, 1, was prepared at -80 °C by reaction of methylamine with boron trichloride. Heating this compound up to 300°C resulted in its conversion to Β,Β',Β"tris(methylamino)-N,N\N"-trimethylborazine that condensed into a polymeric species, with methylamine evolution. The compound formed by the condensation of two borazine units was thoroughly characterised by 11 Β NMR and con-elated 1 H and 13 C NMR while a related compound resulting from the further condensation of borazine units could be detected. No ring opening was observed during the initial steps of the condensation reactions. Further pyrolysis of 1 above 1000°C resulted in the formation of boron nitride that was characterized by powder X-ray diffraction, infrared and elemental analysis techniques. Furthermore 1 appeared to convert by heating to a mixture of suitable viscosity for BN coating applications. Thus, it appeared as a very interesting precursor to boron nitride.

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Author

B. Bonnetot; B. Frange; F. Guilhon; H. Mongeot

Publisher

Walter de Gruyter GmbH

Published

1994

Language

EN

Field

Chemistry (Physical Sciences)