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Why H2S2 is hydrogen disulfide and not hydrogen persulfide?

Recently,Context: I was checking on this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in, the comments section:

Persulphide? Disulphide is ok here but per- not really.

The answerer actually namedcompound $\ce{FeS2}$ to bewas named "iron disulphide" iron persulfide(it was previously named "iron persulfide" but later changed to iron disulfide after responding to the commentcomments).

I checked the google and found the wikipedia article of marcasite and referred its nameThe structure of "hydrogen disulfide" is quite analogous to be iron(II) disulfidehydrogen peroxide i. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anione. Why not persulfide anioncontaining the sulfur-sulfur linkage bond (as per analogy$\ce{-S-S -}$) similar to peroxide anion $\ce{O2^2-}$)bond. The bond angles of both compounds are also similar. So, why name it "disulfide" instead of "persulfide"?

In a group, compound names are named similarlyin a similar manner in order to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why isn't it is not named hydrogen persulfide byas per analogy?

Why hydrogen disulfide and not hydrogen persulfide?

Recently, I was checking on this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in the comments section:

Persulphide? Disulphide is ok here but per- not really.

The answerer actually named $\ce{FeS2}$ to be iron persulfide but later changed to iron disulfide after responding to the comment.

I checked the google and found the wikipedia article of marcasite and referred its name to be iron(II) disulfide. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anion. Why not persulfide anion (as per analogy to peroxide anion $\ce{O2^2-}$)?

In a group, compound names are named similarly to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why it is not named hydrogen persulfide by analogy?

Why H2S2 is hydrogen disulfide and not hydrogen persulfide?

Context: I was checking this question and in the answer, the compound $\ce{FeS2}$ was named "iron disulphide" (it was previously named "iron persulfide" but later changed after responding to the comments).

The structure of "hydrogen disulfide" is quite analogous to hydrogen peroxide i.e. containing the sulfur-sulfur linkage bond ($\ce{-S-S -}$) similar to peroxide bond. The bond angles of both compounds are also similar. So, why name it "disulfide" instead of "persulfide"?

In a group, compound are named in a similar manner in order to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why isn't it named hydrogen persulfide as per analogy?

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edited Apr 13, 2017 at 12:57

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Recently, I was checking on this question this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in the comments section:

Persulphide? Disulphide is ok here but per- not really.

The answerer actually named $\ce{FeS2}$ to be iron persulfide but later changed to iron disulfide after responding to the comment.

I checked the google and found the wikipedia article of marcasite and referred its name to be iron(II) disulfide. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anion. Why not persulfide anion (as per analogy to peroxide anion $\ce{O2^2-}$)?

In a group, compound names are named similarly to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why it is not named hydrogen persulfide by analogy?

Recently, I was checking on this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in the comments section:

Persulphide? Disulphide is ok here but per- not really.

The answerer actually named $\ce{FeS2}$ to be iron persulfide but later changed to iron disulfide after responding to the comment.

I checked the google and found the wikipedia article of marcasite and referred its name to be iron(II) disulfide. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anion. Why not persulfide anion (as per analogy to peroxide anion $\ce{O2^2-}$)?

In a group, compound names are named similarly to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why it is not named hydrogen persulfide by analogy?

Recently, I was checking on this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in the comments section:

Persulphide? Disulphide is ok here but per- not really.

The answerer actually named $\ce{FeS2}$ to be iron persulfide but later changed to iron disulfide after responding to the comment.

I checked the google and found the wikipedia article of marcasite and referred its name to be iron(II) disulfide. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anion. Why not persulfide anion (as per analogy to peroxide anion $\ce{O2^2-}$)?

In a group, compound names are named similarly to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why it is not named hydrogen persulfide by analogy?

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edited Nov 1, 2016 at 5:02

Nilay Ghosh

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Recently, I was checking on this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in the comments section:

Persulphide? Disulphide is ok here but per- not really.

The answerer actually named $\ce{FeS2}$ to be iron persulfide but later changed to iron disulfide after responding to the comment.

I checked the google and found the wikipedia article of marcasite and referred its name to be iron(II) disulfide. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anion. Why not persulfide anion (as per analogy to peroxide anion $\ce{O2^2-}$)?

In a group, compound names are named similarly to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why it is not named hydrogen persulfide by analogy?

Recently, I was checking on this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in the comments section:

Persulphide? Disulphide is ok here but per- not really

The answerer actually named $\ce{FeS2}$ to be iron persulfide but later changed to iron disulfide after responding to the comment.

I checked the google and found the wikipedia article of marcasite and referred its name to be iron(II) disulfide. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anion. Why not persulfide anion (as per analogy to peroxide anion $\ce{O2^2-}$)?

In a group, compound names are named similarly to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why it is not named hydrogen persulfide by analogy?

Recently, I was checking on this question and I was thinking of the name of the compound $\ce{FeS2}$. Later I checked the name in the answer to be iron disulfide. I found the following statement in the comments section:

Persulphide? Disulphide is ok here but per- not really.

The answerer actually named $\ce{FeS2}$ to be iron persulfide but later changed to iron disulfide after responding to the comment.

I checked the google and found the wikipedia article of marcasite and referred its name to be iron(II) disulfide. But why? Why not iron persulfide? It contains the $\ce{S2^2-}$ ion which is named disulfide anion. Why not persulfide anion (as per analogy to peroxide anion $\ce{O2^2-}$)?

In a group, compound names are named similarly to follow a certain fashion/trend. For e.g. methane, silane, germane (group 14). So, why $\ce{H2O2}$ is hydrogen peroxide and $\ce{H2S2}$ is hydrogen disulfide? Why it is not named hydrogen persulfide by analogy?

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occurred Oct 29, 2016 at 16:24

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asked Oct 29, 2016 at 14:55

Nilay Ghosh

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Why H2S2 is hydrogen disulfide and not hydrogen persulfide?

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