23 votes
Accepted

Could ammonium azanide exist?

Technically, ordinary liquid ammonia may be regarded as a very dilute solution of ammonium azanide through its autoionization. (Water is similarly very dilute hydronium hydroxide.) This technicality ...
Oscar Lanzi's user avatar
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17 votes
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Why can't NH5 form?

I have pursued such questions regarding the hypervalency of particular molecules before and thus, I would like to provide some insights to the matter. A common superficial answer that one can ...
Tan Yong Boon's user avatar
11 votes

Could ammonium azanide exist?

In standard conditions ammonium amide in pure form wouldn't be stable as it would turn into ammonia through proton transfer. However, it is being taught that in liquid ammonia there is an equilibrium ...
Fractal's user avatar
  • 382
6 votes
Accepted

Ionic compounds with hydride anion

Hydrogen does form ionic bonds. Although not as bare $\ce{H+}$, it can form ionic bonds in the form of $\ce{H-}$ (hydride anion). $\ce{H-}$ forms ionic bonds with alkali metal ions and alkaline earth ...
Adithya's user avatar
  • 1,401
4 votes
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Is it not possible to prepare LAH using aluminium hydride?

First off, aluminum hydride is not a molecular compound. It has a macromolecular structure with empirical formula $\ce{AlH3}$. Since the compound is not molecular, the empirical formula is the one we ...
Oscar Lanzi's user avatar
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4 votes
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Why does AsH3 have a higher boiling point than HBr?

The question behind the question is why do the hydrogen halides fall behind the other hydrogen compounds shown when we get to heavier periods? A clue to the answer may be gleaned by completing each ...
Oscar Lanzi's user avatar
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3 votes

Lithium aluminium hydride

Contrasting to reductions with elemental sodium (or other metals), the reduction by $\ce{LiAlH4}$ is not an electrochemical one by mere electron transfer only. Instead, the complex anion ($\ce{[AlH4]^...
Buttonwood's user avatar
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3 votes
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If diborane has 3c-2e bonds, then why are both boron atoms still electron deficit?

Well at least according to Professor William Lipscomb, who won a Nobel Prize "for his studies on the structure of boranes illuminating problems of chemical bonding", they are not electron ...
Ian Bush's user avatar
  • 3,049

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