betaSO3

betaSO3 is a theoretical allotrope of sulfur trioxide, represented by the chemical formula SO3. Allotropes are different structural forms of the same element in the same physical state. While alphaSO3 and gammaSO3 are well-established solid forms of sulfur trioxide, betaSO3 remains largely hypothetical and has not been definitively isolated or characterized experimentally.

The existence of betaSO3 has been proposed based on theoretical calculations and modeling of sulfur trioxide's phase diagram. These theoretical investigations suggest that under specific temperature and pressure conditions, a distinct crystalline structure for SO3 might exist that differs from the known alpha and gamma forms. However, experimental confirmation is lacking.

The properties of betaSO3, if it exists, are not well-understood. It is presumed to be a solid form, like other allotropes of SO3. Sulfur trioxide itself is a highly reactive compound that readily reacts with water to form sulfuric acid and is a key intermediate in the industrial production of sulfuric acid. Any specific properties of a betaSO3 allotrope would be dictated by its unique molecular arrangement. Further research, particularly experimental studies, would be required to confirm the existence and determine the properties of betaSO3.