What color is pentacene?
Product Details
| Purity | >99% (sublimed) |
|---|---|
| Melting point | 372-374 °C (subl.) |
| Colour | purple-black crystals/powder |
| Solvents | Pentacene is insoluble in most of the organic solvents. Trichlorobenzene is normally used to form solution at 60 – 120 °C [10] |
Why is pentacene Coloured?
Pentacene consists of five linearly fused conjugated aromatic rings. In the presence of air and visible or UV light, pentacene crystals change color from purple to green, the result of photooxidation of the central aromatic ring. Its synthesis was first reported in 1929.
How many condensed benzene ring in pentacene?
five benzene rings
Introduction. Pentacene is a polycyclic aromatic hydrocarbon consisting of five benzene rings fused in a linear fashion (Fig. 1).
What is TIPS pentacene?
6,13-Bis(triisopropylsilylethynyl)pentacene (TIPS-pentacene) is a conductive polymer that can form organic thin films for a variety of semiconductor applications due to its high charge carrier mobility and stability.
What is Pentacene used for?
Pentacene is a popular choice for research on organic thin-film transistors and OFETs, being one of the most thoroughly investigated conjugated organic molecules with a high application potential due to a hole mobility in OFETs of up to 5.5 cm2/(V·s), which exceeds that of amorphous silicon.
Which reaction is used in the initial stage of the synthesis of pentacene?
The first synthesis of pentacene was accomplished by Clar in 1929 via a transfer dehydrogenation of 6,13-dihydropentacene using phenanthraquinone [10,11]. Thus, successive Friedel-Craft acylations of m-xylene using benzoyl chloride produces 1,3-dibenzoyl-4,6-dimethylbenzene.
Is phenanthrene a hydrocarbon?
Phenanthrene is a polycyclic aromatic hydrocarbon (PAHs) composed of three fused benzene rings which takes its name from the two terms ‘phenyl’ and ‘anthracene.
Is phenanthrene a planar molecule?
Phenanthrene is a planar polycyclic aromatic hydrocarbon, consisting of three fused benzene rings.
How many isomers does phenanthrene have?
The occurrence of two parent isomers, phenanthrene and anthracene, introduces added complexity and signature richness to the forensic interpretation.
What is the Iupac name of phenanthrene?
Phenanthrene
| Names | |
|---|---|
| Preferred IUPAC name Phenanthrene | |
| Other names Tricyclo[8.4.0.02,7]tetradeca-1,3,5,7,9,11,13-heptaene | |
| Identifiers | |
| CAS Number | 85-01-8 |