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Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C 14 H 10, consisting of three fused benzene rings. It is a component of coal tar . Anthracene is used in the production of the red dye alizarin and other dyes.
Most PAHs, like naphthalene, anthracene, and coronene, are planar. This geometry is a consequence of the fact that the σ-bonds that result from the merger of sp 2 hybrid orbitals of adjacent carbons lie on the same plane as the carbon atom. Those compounds are achiral, since the plane of the molecule is a symmetry plane.
When comparing a polar and nonpolar molecule with similar molar masses, the polar molecule in general has a higher boiling point, because the dipole–dipole interaction between polar molecules results in stronger intermolecular attractions. One common form of polar interaction is the hydrogen bond, which is also
The reaction of C 60 with anthracene is conveniently conducted in refluxing naphthalene to give the 1:1 Diels–Alder adduct. [30] The aromatization of hydroporphyrins has been achieved using a solution of DDQ in naphthalene.
9-Anthracenemethanol is the derivative of anthracene with a hydroxymethyl group (CH 2 OH) attached to the 9-position. It is a colorless solid that is soluble in ordinary organic solvents. The compound can be prepared by hydrogenation of 9-anthracenecarboxaldehyde. It is a versatile precursor to supramolecular assemblies.
Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is C 16 H 10.This yellow-green solid is the smallest peri-fused PAH (one where the rings are fused through more than one face).
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Phenanthrene is a polycyclic aromatic hydrocarbon (PAH) with formula C 14 H 10, consisting of three fused benzene rings. It is a colorless, crystal-like solid, but can also appear yellow.