Elusive atmospheric molecule produced in a lab

The previously elusive Methanediol molecule of importance to the organic, atmospheric science and astrochemistry communities has been synthetically produced for the first time.

Formaldehyde monohydrate (Methanediol). With the chemical formula CH₂(OH)₂, it is the simplest geminal diol, a molecule which carries two hydroxyl groups (OH) at a single Carbon atom.

These organic molecules are suggested as key intermediates in the formation of aerosols and reactions in the ozone layer of the atmosphere.

The research team prepared Methanediol via energetic processing of extremely low temperature ices and observed the molecule through a high-tech mass spectrometry tool exploiting tunable vacuum photoionization (the process in which an ion is formed from the interaction of a photon with an atom or molecule).

Electronic structure calculations confirmed the gas phase stability of this molecule and demonstrated a pathway via reaction of electronically excited Oxygen atoms with methanol.

Astronomers may now be able to use radio telescopes to identify elusive molecules, such as Methanediol, in deep space.

This versatile strategy to first synthesize molecules, such as geminal diols, prior to their search in star forming regions, may eventually bring us closer to an understanding of the molecular structure and chemical bonding of exotic organic molecules, which according to textbooks "should not exist."