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I'm learning about refrigerants, and one refrigerant is R-1234ze, otherwise known as 1,3,3,3-Tetrafluoropropene.

On Wikipedia, it says that the chemical formula is $\ce{C_3H_2F_4}$. But, Wikipedia also has the following diagram, which doesn't have any C or H atoms in it. Is there some sort of shorthand in these diagrams that omits C and H? Or, is this a typo on the Wikipedia article?

enter image description here

P.S. This was closed due to being a "homework question." I can see why people might think I am a freshman undergraduate trying to get a leg up on homework. However... I asked this because I am trying to get a handle on refrigerants and why they are so damaging to the climate, and what better refrigerants might look like. I already have a PhD in a different field, but I am a noob at chemistry. I wish I had time to go back to school and build up a lot of chemistry knowledge!

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    $\begingroup$ It is the common convention C and H atoms are not drawn. It is $\ce{F-CH=CH-CF3}$ $\endgroup$
    – Poutnik
    Commented Nov 13, 2021 at 17:31
  • $\begingroup$ Ah, that makes sense! I thought it must be something like that. If you post that as an answer, I will accept it. $\endgroup$
    – solvingPuzzles
    Commented Nov 13, 2021 at 17:32
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    $\begingroup$ en.wikipedia.org/wiki/Skeletal_formula $\endgroup$
    – andselisk ♦
    Commented Nov 14, 2021 at 10:53

1 Answer 1

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It is the common convention C and H atoms (attached to C) are not drawn. It is $$\ce{F-CH=CH-CF3}$$

It comes particularly handy for complex structures of sacharides and other molecules in biochemistry.

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