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  2. Bicyclic molecule - Wikipedia

    en.wikipedia.org/wiki/Bicyclic_molecule

    The numbers are sometimes omitted in unambiguous cases. For example, bicyclo[1.1.0]butane is typically called simply bicyclobutane. The heterocyclic molecule DABCO has a total of 8 atoms in its bridged structure, hence the root name octane. Here the two bridgehead atoms are nitrogen instead of carbon atoms.

  3. Bicyclobutane - Wikipedia

    en.wikipedia.org/wiki/Bicyclobutane

    Bicyclobutane is noted for being one of the most strained compounds that is isolatable on a large scale — its strain energy is estimated at 63.9 kcal mol −1. It is a nonplanar molecule, with a dihedral angle between the two cyclopropane rings of 123°.

  4. Ring strain - Wikipedia

    en.wikipedia.org/wiki/Ring_strain

    In alkanes, optimum overlap of atomic orbitals is achieved at 109.5°. The most common cyclic compounds have five or six carbons in their ring. [6] Adolf von Baeyer received a Nobel Prize in 1905 for the discovery of the Baeyer strain theory, which was an explanation of the relative stabilities of cyclic molecules in 1885.

  5. Cycloalkane - Wikipedia

    en.wikipedia.org/wiki/Cycloalkane

    Norbornane (also called bicyclo[2.2.1]heptane). Unsubstituted cycloalkanes that contain a single ring in their molecular structure are typically named by adding the prefix "cyclo" to the name of the corresponding linear alkane with the same number of carbon atoms in its chain as the cycloalkane has in its ring.

  6. Spiro compound - Wikipedia

    en.wikipedia.org/wiki/Spiro_compound

    Bicyclic ring structures in organic chemistry that have two fully carbocyclic (all carbon) rings connected through a carbon atom are the usual focus of the topic of spirocycles.

  7. Dog Day Care Does 'School Pictures' & the Results Are Nothing ...

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    Follow us on YouTube for more entertaining videos. Or, share your own adorable pet by submitting a video, and sign up for our newsletter for the latest pet updates and tips. Show comments.

  8. Comproportionation - Wikipedia

    en.wikipedia.org/wiki/Comproportionation

    Comproportionation or symproportionation is a chemical reaction where two reactants containing the same element but with different oxidation numbers, form a compound having an intermediate oxidation number. It is the opposite of disproportionation. [1]

  9. DPCS Professional Women Infographic

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    Generational Differences Paying off student loans Having enough money saved for retirement Having enough money saved to fund my children’s education