Diphosphorus trisulfide (sometimes called phosphorus trisulfide) is a phosphorus sulfide with the formula of . The substance is highly unstable and difficult to study.

History

Early reports that diphosphorous trisulfide could be formed by heating

red phosphorus Elemental phosphorus can exist in several allotropes, the most common of which are white and red solids. Solid violet and black allotropes are also known. Gaseous phosphorus exists as diphosphorus and atomic phosphorus. White phosphorus White ...

and

sulfur Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula ...

were shown to be incorrect by Helff in 1893. Its existence was again reported by Ralston and Wilkinson in 1928. In 1959, Pitochelli and Audrieth showed that the substance existed by

X-ray diffraction X-ray crystallography is the experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions. By measuring the angles ...

but did not succeed in fully isolating it. In 1997, Lohr and Sundholm published a theoretical analysis of the potential structures of this molecular substance. In 2017, Xiao proposed that a 2D crystallisation of was possible based on computer simulations. Xiao suggested that

nanoribbon Nanoribbon may refer to: * Graphene nanoribbons * Silicene nanoribbons * Boron nitride nanoribbons * Gallium(III) oxide nanoribbons * titanate nanoribbons - see titanium dioxide * Phosphorene nanoribbons {{Short pages monitor