# Explanation of certain chemical bond diagrams

Here's a "simple" bond diagram of 1,1,1,2-Tetrafluoroethane which I believe is a Lewis structure:

OK, that's easy enough - four bonds from each carbon atom, and each fluorine atom having one bond.

Here are some more "complicated" bonds which I have yet to do in my high school chemistry class, so I don't understand how to interpret them.

Here's caffeine:

And chloroform:

How would I go on interpreting these diagrams? Or is there missing information?

Image sources: Wikimedia

• There are many different ways of representing molecular structures, see the Wikipedia page on structural formula(e) for a summary. The one used most frequently by organic chemists is a skeletal formula (often referred to as a "bond-line structure" or "line-angle formula"), which is what you see in that representation of caffeine. – Greg E. Jul 19 '14 at 22:08

• Thanks for the detailed explanation! Can we always assume that a stick with nothing at the end implies $CH_3$? Also, what compound is in the first image you posted? – baharini Jul 19 '14 at 22:16