Conversion of tris (isopropylamino) borane to polyborazines. Thermal degradation to boron nitride

F Guilhon, B Bonnetot, D Cornu, H Mongeot

Index: Guilhon; Bonnetot; Cornu; Mongeot Polyhedron, 1996 , vol. 15, # 5-6 p. 851 - 859

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Citation Number: 21

Abstract

Thermolysis of tris (isopropylamino) borane (1) and its reaction with ammonia were investigated. Compound 1 exhibited good thermal stability resulting in almost complete evaporation during its thermogravimetric analysis under Ar up to 1000° C. Refluxing of 1 for 42 h at 250° C produced its conversion into the expected B, B′, B′-tris (isopropylamino)- N, N′, N ″-triisopropylborazine (2), and into the new intermediate [(NHPri) 2B] 2NPri (3), ...