Phosphorine

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Science and technology

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What Wikipedia says

Phosphorine (IUPAC name: phosphinine) is a heavier element analog of pyridine, containing a phosphorus atom instead of an aza- moiety. It is also called phosphabenzene and belongs to the phosphaalkene class. It is a colorless liquid that is mainly of interest in research.

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

Image: Roland Mattern, Public domain, via Wikimedia Commons.