Quintuple bond

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Notion

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Science and technology

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What Wikipedia says

A quintuple bond in chemistry is an unusual type of chemical bond, first reported in 2005 for a dichromium compound. Single bonds, double bonds, and triple bonds are commonplace in chemistry.

Excerpt from the Wikipedia article “Quintuple bond”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Benrr101, Public domain, via Wikimedia Commons.