Sciencemadness Discussion Board - Bond energy and Hybridisation

Bond energy and Hybridisation

Dr.Felix Strausser - 2-9-2015 at 06:17

I was going through some reference material and came across something confusing.
According to it;
Bond length decreases with increase in s-character, since the s-orbital is smaller than the p-orbital.
Shorter the bond length, the greater the bond energy/strength.

I was pretty fine with those, as it didn't conflict with anything I came across earlier [as a matter of fact, it supports it], but what came up later utterly confused me.....
Bond energy increases in the following order:
s<p<sp<sp2<sp3

But this completely contradicts the earlier two points, according to which the bond energy should have increased as:
p<sp3<sp2<sp<s

Have they printed it wrong or is there something I've overlooked about this?

DraconicAcid - 2-9-2015 at 08:05

The more s-character in the bond, the shorter and stronger the bond. I'm not sure what they printed "for the following order"...was there more than just the one letter?

blogfast25 - 2-9-2015 at 08:33

Quote: Originally posted by Dr.Felix Strausser

I was going through some reference material and came across something confusing.
According to it;
Bond length decreases with increase in s-character, since the s-orbital is smaller than the p-orbital.
Shorter the bond length, the greater the bond energy/strength.

I was pretty fine with those, as it didn't conflict with anything I came across earlier [as a matter of fact, it supports it], but what came up later utterly confused me.....
Bond energy increases in the following order:

s < p < sp < sp2 < sp3

But this completely contradicts the earlier two points, according to which the bond energy should have increased as:

p < sp3 < sp2 < sp < s

Have they printed it wrong or is there something I've overlooked about this?

I've edited your post a bit: the angular brackets were fouling it.

[Edited on 2-9-2015 by blogfast25]

But these bonds should be called σ bonds: for example σss, σpp, σsp, σsp2 etc...

[Edited on 2-9-2015 by blogfast25]

aga - 2-9-2015 at 11:12

How is σ pronounced please.

blogfast25 - 2-9-2015 at 11:23

Quote: Originally posted by aga

How is σ pronounced please.

"sigma".

aga - 2-9-2015 at 13:01

Lower case Sigma.

ThanQ

O-flick was begging to embed itself, which was worrying.

[Edited on 2-9-2015 by aga]