That gas is phosphine - a molecule made up of one phosphorus atom and three hydrogen atoms. On Earth, phosphine is associated with life, with microbes living in the guts of animals like penguins ...
In 2020 researchers publishing in the journal Nature Astronomy revealed that the atmosphere of Venus appeared to contain trace amounts of phosphine, a gas associated with anaerobic bacteria on Earth.
The formation of a phosphine oxide with its strong P=O bond is the driving force for the classical Wittig reaction, but is wasteful and can pose problems during purification. A new development ...