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SO42- as OSO32-

Posted: Sat Nov 12, 2016 8:17 pm
by Yinhan_Liu_1D
Hi, all,

As I was go over the naming chart in our course reader, I found that it names OSO32- as sulfato. However, as I was searching on line, all the sulfato structure I have found is centered at "S".

1) Can anyone kindly show me how center at "O" would look like?

2) Do the SO42- centered at "S" and the SO42- centered at "O" have the same name: sulfato?

I would really appreciate your help.

Re: SO42- as OSO32-

Posted: Sat Nov 12, 2016 8:29 pm
by Josh Ku 3H
Hi,
If you're looking at the anionic ligand chart, then I believe SO42- and OSO32- are the same molecule. They both indicate a sulfate molecule which is known as sulfato when it acts as a ligand. The reason why the chart writes OSO32- is to emphasize that it is the oxygen that forms a bond with the transition metal rather than the sulfur. This is because the oxygen has lone pairs to give up while sulfur does not. This is also done with water when it is written as OH2 rather than H2O in some cases. The chart also underlines the atom that forms the bond which is why the first O in OSO32- is underlined.

I hope this helps

Re: SO42- as OSO32-

Posted: Sat Nov 12, 2016 8:38 pm
by Yinhan_Liu_1D
Josh Ku 1K wrote:Hi,
If you're looking at the anionic ligand chart, then I believe SO42- and OSO32- are the same molecule. They both indicate a sulfate molecule which is known as sulfato when it acts as a ligand. The reason why the chart writes OSO32- is to emphasize that it is the oxygen that forms a bond with the transition metal rather than the sulfur. This is because the oxygen has lone pairs to give up while sulfur does not. This is also done with water when it is written as OH2 rather than H2O in some cases. The chart also underlines the atom that forms the bond which is why the first O in OSO32- is underlined.

I hope this helps



Thank you, got it!

I misunderstood the meaning of the underlining.

Thank you.