# What are structural isomers?

Mar 4, 2018

These are compounds with the SAME formula.....

#### Explanation:

....but whose connectivity differ...

Organic chemistry provides a WEALTH of examples of structural isomers. A formula of ${C}_{4} {H}_{10}$ allows TWO structural isomers (which are?). And a A formula of ${C}_{5} {H}_{12}$ generates THREE structural isomers (which are?).

As the formula gets larger, the opportunity for isomerism is magnified.

Can you draw the structure of the three isomers of pentane? I think you could (and should) do this...