Re: tojc: bond lengths

stoneag@PLU.edu
Mon, 16 Sep 1996 16:37:46 -0800 (PST)

Lori,
On page 16 the first paragraph reads
"x-ray studes have shown that carbon-oxygen double bonds are shorter than
single bonds."
to your second problem because resonance structures exist only in theory
we create a hybrid of the hypothetical resonance structures."thus all of
the carbond-oxygen bonds are partial double bonds and all are equivalent.
All of them shoudl be the same length." Of course this only applies to
resonace structures that contain double bonds.
hope that helps,
allister

On Sun, 15 Sep 1996, Lori
wrote:

>
> Ok, I have yet another question. How do you know which bonds are longer
> than others? The problem I am looking at is 4b. If you have O-C vs. an
> O=C, how are you supposed to know the bonds are of equal lengths?
>
> {Lori Grimberg | In the space age the most important }
> {Grimbele@pepper.plu.edu | space is between your ears. }
> {Student Consultant | -THOMAS J BARLOW }
>
>