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  2. Clar's rule - Wikipedia

    en.wikipedia.org/wiki/Clar's_rule

    As a result, while anthracene reacts with maleic acid, phenanthrene does not, and triphenylene is the most stable species of these three. [1] Three Clar structures with an increasing number of fused rings around a benzene moiety: anthracene (on the left), phenanthrene (in the middle), and triphenylene (on the right).

  3. Phenanthrene - Wikipedia

    en.wikipedia.org/wiki/Phenanthrene

    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. Phenanthrene is used to make dyes, plastics, pesticides, explosives, and drugs. It has also been used to make bile acids, cholesterol and steroids. [3]

  4. Anthracene - Wikipedia

    en.wikipedia.org/wiki/Anthracene

    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. Anthracene is colorless but exhibits a blue (400–500 nm peak) fluorescence under ultraviolet radiation. [13]

  5. Polycyclic aromatic hydrocarbon - Wikipedia

    en.wikipedia.org/wiki/Polycyclic_aromatic...

    A Polycyclic aromatic hydrocarbon (PAH) is a class of organic compounds that is composed of multiple aromatic rings.Most are produced by the incomplete combustion of organic matter— by engine exhaust fumes, tobacco, incinerators, in roasted meats and cereals, [1] or when biomass burns at lower temperatures as in forest fires.

  6. Triplet-triplet annihilation - Wikipedia

    en.wikipedia.org/wiki/Triplet-Triplet_Annihilation

    A Jablonski diagram describing the mechanism of triplet-triplet annihilation. The energy of the first triplet excited state (T 1) is transferred to a second triplet excited state (T 1), resulting in (1) the first T 1 returning to the singlet ground state S0 and (2) the second T 1 promoting to the singlet excited state (S 1).

  7. Electron affinity - Wikipedia

    en.wikipedia.org/wiki/Electron_affinity

    The electron affinity of molecules is a complicated function of their electronic structure. For instance the electron affinity for benzene is negative, as is that of naphthalene, while those of anthracene, phenanthrene and pyrene are positive. In silico experiments show that the electron affinity of hexacyanobenzene surpasses that of fullerene. [5]

  8. Today's Wordle Hint, Answer for #1259 on Friday, November 29 ...

    www.aol.com/todays-wordle-hint-answer-1259...

    Today's Wordle Answer for #1259 on Friday, November 29, 2024. Today's Wordle answer on Friday, November 29, 2024, is HIPPO. How'd you do? Next: Catch up on other Wordle answers from this week.

  9. 1-Hydroxyphenanthrene - Wikipedia

    en.wikipedia.org/wiki/1-Hydroxyphenanthrene

    1-Hydroxyphenanthrene is a phenanthrol and a human metabolite of phenanthrene that can be detected in urine of persons exposed to PAHs. [1] It can also be used as a marker for PAH pollution measured in marine fish bile. [2]