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Brønsted and Lewis Base Behavior of Sodium Amidotrihydridoborate (NaNH 2 BH 3 )
Author(s) -
Chen XiMeng,
Li Huizhen,
Yang QiuYu,
Wang RuiRui,
Hamilton Ewan J. M.,
Zhang Jie,
Chen Xuenian
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700556
Subject(s) - chemistry , hydride , lewis acids and bases , sodium hydride , brønsted–lowry acid–base theory , medicinal chemistry , conjugate acid , cyclopentadiene , reactivity (psychology) , inorganic chemistry , catalysis , ion , organic chemistry , hydrogen , medicine , alternative medicine , pathology
The reactivity of sodium amidoborane (NaNH 2 BH 3 ) as a Brønsted and Lewis base was studied systematically. The [NH 2 BH 3 ] – anion can act as a proton acceptor or a hydride donor in different types of reactions. In reactions with very weak Brønsted acids such as cyclopentadiene, ammonia, and pyrazole, the [NH 2 BH 3 ] – anion acts as a proton acceptor through the lone pair on N. The reactions of [NH 2 BH 3 ] – with stronger Brønsted acids are complicated. In the reaction with ammonium chloride or acetic acid, [NH 2 BH 3 ] – accepts a proton, reforming NH 3 BH 3 . However, in the reaction with HCl or methanol, N–B bond cleavage occurs. [NH 2 BH 3 ] – can also donate hydride in some reactions. The possible mechanisms of these reactions are discussed.