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Matrix isolation study of the mechanism of the reaction of diborane with ammonia: pyrolysis of the H3B·NH3 adduct

✍ Scribed by John D. Carpenter; Bruce S. Ault

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
294 KB
Volume
197
Category
Article
ISSN
0009-2614

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✦ Synopsis

Gas-phase pyrolysis of the H3B.NH9 adduct followed by trapping of the reaction product(s) in an argon matrix at 14 K was conducted to provide support for an earlier proposed mechanism for the reaction of B2H6 with NH+ As the pyrolysis temperature increased from 65 to 3OO"C, a decrease in yield of adduct was noted, along with a concomitant growth in H2B=NHZ. The results obtained here support a mechanism for the reaction of B2H6 with NH, in which the 1: 1 adduct H,B.NH3 is formed in an initial slow step, and is followed by rapid elimination of H2 to form H2B=NH2.

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