Molecules or ions containing a chain of exactly two double bonds between consecutive atoms X=Y=Z, in which at least one of these atoms is a heteroatom.

For entities containing a chain of exactly two double bonds between consecutive carbon atoms, see Category:Cumulated dienes. For entities containing a chain of 3+ double bonds between consecutive atoms, see Category:Heterocumulenes.

Subcategories

This category has the following 5 subcategories, out of 5 total.

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Pages in category "Heteroallenes"

The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes.