Formula C24H8O6 | Density 1.7 g/cm³ | |
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Perylenetetracarboxylic dianhydride (PTCDA) is an organic dye molecule and an organic semiconductor. It is used as a precursor to a class of molecules known as Rylene dyes, which are useful as pigments and dyes. It is a dark red solid with low solubility in aromatic solvents. The compound has attracted much interest as an organic semiconductor.
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Structure
PTCDA consists of a perylene core to which two anhydride groups have been attached, one at either side. It occurs in two crystalline forms, α and β. Both have the P21/c monoclinic symmetry and a density of ca. 1.7 g/cm3, which is relatively high for organic compounds. Their lattice parameters are:
Use
The main industrial use of PTCDA is as a precursor to Rylene dyes.
References
Perylenetetracarboxylic dianhydride Wikipedia(Text) CC BY-SA