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Re: Monatomic hydrogen as fuel - need a low bond energy to singlehydrog

Subject: Re: Monatomic hydrogen as fuel - need a low bond energy to singlehydrogen atoms.
From: Odysseus
Date: Wed, 29 Mar 2006 07:35:06 GMT
Newsgroups: sci.astro
> Wouter van Marle wrote:
> 
<snip>

> In other words: to get a H bond, the H atom in the bond must be
> bonded covalently to an atom with a high electronegativity, to
> create a strong dipole.

The coordinated atom must also have at least one free pair of
electrons to make the H-bond, because the hydrogen atom's sole
electron is tied up in the covalent bond. You'll sometimes see
representations like

(water)              H   (ammonia)
                     |
H-Ö: - - H-OH  or  H-N: - - H-NH_2
  |                  |
  H                  H

where the dots represent these electron pairs.

-- 
Odysseus

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