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2 votes
1 answer
129 views

Is it not possible to prepare LAH using aluminium hydride?

Wikipedia lists this reaction for preparation of lithium aluminium hydride: $\ce{4 LiH + AlCl_3 -> Li[AlH_4] + 3 LiCl}$ But is it possible to prepare it by reacting aluminium hydride with lithium ...
Dodo's user avatar
  • 288
1 vote
1 answer
294 views

Why does AsH3 have a higher boiling point than HBr?

Aside from the general trend of the boiling points of the hydrides, I noticed how the group 15 hydrides somehow "overtook" the group 17 ones in boiling point, which felt weird. Notably, H-...
nothingham's user avatar
1 vote
1 answer
289 views

If diborane has 3c-2e bonds, then why are both boron atoms still electron deficit?

This is an image of the structure of diborane. It has a 3-center-2-electron bridge bond. As we can see in the bridge bond, the electron in the hydrogen atom and one electron in either boron atom is ...
Bongo Man's user avatar
  • 429
8 votes
1 answer
9k views

Why can't NH5 form?

In ammonia a nitrogen atom forms 3 covalent bonds with hydrogen atoms and has one lone pair which can be used in a dative covalent bond with another hydrogen atom to form an ammonium ion. Instead of ...
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