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  2. Cyclobutane - Wikipedia

    en.wikipedia.org/wiki/Cyclobutane

    Cyclobutane is a cycloalkane and organic compound with the formula (CH 2) 4. Cyclobutane is a colourless gas and is commercially available as a liquefied gas. Derivatives of cyclobutane are called cyclobutanes. Cyclobutane itself is of no commercial or biological significance, but more complex derivatives are important in biology and ...

  3. Compliance constants - Wikipedia

    en.wikipedia.org/wiki/Compliance_constants

    Note that it is known that the all the four equivalent C-C bonds in cyclobutane are weaker than any of the two distinct C-C bonds in n-butane; [13] therefore, juxtaposition and evaluation of the strength of the C-C bonds in this C4 system can exemplify how force constants fail and how compliance constants do not.

  4. Cycloalkane - Wikipedia

    en.wikipedia.org/wiki/Cycloalkane

    Ball-and-stick model of cyclobutane In organic chemistry , the cycloalkanes (also called naphthenes , but distinct from naphthalene ) are the monocyclic saturated hydrocarbons . [ 1 ] In other words, a cycloalkane consists only of hydrogen and carbon atoms arranged in a structure containing a single ring (possibly with side chains ), and all of ...

  5. Ladderane - Wikipedia

    en.wikipedia.org/wiki/Ladderane

    The final cyclobutane is formed by a Wolff rearrangement, and the alkyl chain is installed by a Wittig olefination. Synthesis of [5]-ladderane lipid pentacycloannamoxic acid In 2016, Burns and co-workers at Stanford University reported an enantioselective synthesis of both the [3]- and [5]-ladderane lipid tails and their incorporation into a ...

  6. Cyclobutanol - Wikipedia

    en.wikipedia.org/wiki/Cyclobutanol

    Cyclobutanol is an organic compound with the chemical formula C 4 H 8 O; it is defined as a cyclobutyl group with a hydroxyl group pendant and thus a cycloalkanol. Physically, it is a yellowish clear liquid [1] that crystallizes orthorhombically at low-temperatures.

  7. Octafluorocyclobutane - Wikipedia

    en.wikipedia.org/wiki/Octafluorocyclobutane

    In the production of semiconductor materials and devices, octafluorocyclobutane serves as a deposition gas and etchant. [2] It has also been investigated as a refrigerant in specialised applications, as a replacement for ozone depleting chlorofluorocarbon refrigerants.

  8. Cyclobutanetetrone - Wikipedia

    en.wikipedia.org/wiki/Cyclobutanetetrone

    Cyclobutanetetrone, also called tetraoxocyclobutane, is an organic compound [1] with formula C 4 O 4 or (CO) 4, the fourfold ketone of cyclobutane. It would be an oxide of carbon, indeed a tetramer of carbon monoxide. The compound seems to be thermodynamically unstable. [2]

  9. Is It Safe to Use Expired Vitamins? The Truth About Vitamin ...

    www.aol.com/vitamins-expire-nutritionists-weigh...

    When you buy a bottle of vitamins from a nutrition store, you’ll probably notice a best-by date on the bottom of the jar. But that inscribed number isn’t a hard-and-fast rule—there is some ...