(image: 52- This are pheromones of different insects.
a- Write it's name accordingly to the IUPAC
b- Pheromones are volatile compounds that enable communications between insects. What is the nature that make them volatile?)
In general, I have a problem to identfy volatile compounds.
I don't understand wich are the characteristics that make them more or less volatile.
I understand that volatile is the capacity that a sustance have to go to vapor. As it is more volatile it's easier to go to vapor with less energy.
¿What do I see in common in mor than 3 molecules?
All of them have a functional group ester.
All of them have double bond.
All of them have oxygen atoms with two pair of electron unpaired each.
I think that it can be volatile by nature of the double bond.
The Carbon that present double bond, generally are hybrized SP2. Meaning that they have a P orbital without hybridization, and form a bond π where the elecontr's pair that's there isn't limited sterically, and is easy to attack.
Meaning that isn't require much energy to break the bond.
But, I don't understand why they aren't triple bond instead of double, followin the logic that a triple bond would make a more volatile molecule.
My question is, what are the characteristics that make a compound more or less volatile and how can I identify it?
Sorry for my band english, I did my best, if you can't understand something I'll do my best to clarify it.