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  2. Tris(pentafluorophenyl)borane - Wikipedia

    en.wikipedia.org/wiki/Tris(pentafluorophenyl)borane

    Tris(pentafluorophenyl)borane, sometimes referred to as "BCF", is the chemical compound (C 6 F 5) 3 B.It is a white, volatile solid. The molecule consists of three pentafluorophenyl groups attached in a "paddle-wheel" manner to a central boron atom; the BC 3 core is planar.

  3. Isomerization - Wikipedia

    en.wikipedia.org/wiki/Isomerization

    In chemistry, isomerization or isomerisation is the process in which a molecule, polyatomic ion or molecular fragment is transformed into an isomer with a different chemical structure. [1] Enolization is an example of isomerization, as is tautomerization .

  4. Lithium tetrakis(pentafluorophenyl)borate - Wikipedia

    en.wikipedia.org/wiki/Lithium_tetrakis(pentafluo...

    The anion is tetrahedral with B-C bond lengths of approximately 1.65 Angstroms. The salt has only been obtained as the etherate, and the crystallography confirms that four ether (OEt 2) molecules are bound to the lithium cation, with Li-O bond lengths of approximately 1.95 Å.

  5. Organoxenon chemistry - Wikipedia

    en.wikipedia.org/wiki/Organoxenon_chemistry

    Organoxenon chemistry is the study of the properties of organoxenon compounds, which contain carbon to xenon chemical bonds. The first organoxenon compounds were divalent, such as (C 6 F 5 ) 2 Xe. The first tetravalent organoxenon compound, [C 6 F 5 XeF 2 ][BF 4 ], was synthesized in 2004. [ 1 ]

  6. Cycloisomerization - Wikipedia

    en.wikipedia.org/wiki/Cycloisomerization

    The activation barrier of isomerization of 1,3–hexadiene through a [1,5]–shift is 41 Kcal mol–1 and is expected to increase with conjugation to the ester, thus uncatalyzed isomerization is unlikely. [11] This provides the advantage of bypassing a high barrier of activation, providing access to previously unobtainable IMDA derivatives.

  7. Penex - Wikipedia

    en.wikipedia.org/wiki/Penex

    It also reduces the concentration of benzene in the gasoline pool. [1] It was first used commercially in 1958. [2] Ideally, the isomerization catalyst converts normal pentane (nC5) to isopentane (iC5) and normal hexane (nC6) to 2,2- and 2,3-dimethylbutane. The thermodynamic equilibrium is more favorable at low temperature. [3]

  8. Valence isomer - Wikipedia

    en.wikipedia.org/wiki/Valence_isomer

    In organic chemistry, ... Pentacyclo[5.1.0.0 2,4. 0 3,5.0 6,8]octane (octabisvalene) is the third saturated valence isomer. The (Z)-3,7-phenylsulfonyl derivative is ...

  9. Photoisomerization - Wikipedia

    en.wikipedia.org/wiki/Photoisomerization

    Photoisomerization of azobenzene [1] In chemistry, photoisomerization is a form of isomerization induced by photoexcitation. [2] Both reversible and irreversible photoisomerizations are known for photoswitchable compounds. The term "photoisomerization" usually, however, refers to a reversible process.

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