What are the resonance structures of CH4S?

Answer 1

I believe there are 3 stuctures. The molecule can only resonate through 3 of its Oxygens while the last one holds the hydrogen.

So you have S in the middle 4 Oxygens around it.

1. Oxygen 1 has the hydrogen and has a single bond to the S. Oxygen 2 has a double bond to the S, Oxygen 3 has a single bond to the S (and a negative charge), and Oxygen 4 has a double bond to the S.

2. Same as before but this time Oxygen 3 has the double bond and Oxygen 2 has the single bond and the extra lone pair (negative charge)

3. Same thing except Oxygen 4 now has the single bond and negative charge and Oxygen 2 has the a double bond.

The Oxygen with the hydrogen attached should always be single bonded as well as one other Oxygen. The other 2 oxygens are double bonded.

I hope that makes sense, it's hard to explain when you can't draw it.

Answer 2

Not sure that CH4S exists. What is that?

Answer 3

Yes.