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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. 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. The [Li(OEt 2) 4] + complex is tetrahedral.

  4. Isomerization - Wikipedia

    en.wikipedia.org/wiki/Isomerization

    The compound with the formula (C 5 H 5) 2 Fe 2 (CO) 4 exists as three isomers in solution. In one isomer the CO ligands are terminal. When a pair of CO are bridging, cis and trans isomers are possible depending on the location of the C 5 H 5 groups. [7] Another example in organometallic chemistry is the linkage isomerization of ...

  5. Isomerase - Wikipedia

    en.wikipedia.org/wiki/Isomerase

    Structural isomers have a different ordering of bonds and/or different bond connectivity from one another, as in the case of hexane and its four other isomeric forms (2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, and 2,3-dimethylbutane).

  6. Rearrangement reaction - Wikipedia

    en.wikipedia.org/wiki/Rearrangement_reaction

    A 1,2-rearrangement is an organic reaction where a substituent moves from one atom to another atom in a chemical compound. In a 1,2 shift the movement involves two adjacent atoms but moves over larger distances are possible. Skeletal isomerization is not normally encountered in the laboratory, but is the basis of large applications in oil ...

  7. Bromopentafluorobenzene - Wikipedia

    en.wikipedia.org/wiki/Bromopentafluorobenzene

    Bromopentafluorobenzene is an organofluorine compound with the formula C 6 F 5 Br. It is a colorless liquid that is used to prepare pentafluophenyl compounds. These syntheses typically proceed via the intermediacy of C 6 F 5 Li or the Grignard reagent. [1]

  8. 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]

  9. Valence isomer - Wikipedia

    en.wikipedia.org/wiki/Valence_isomer

    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 stable up to 200 °C.

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