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  2. Newman projection - Wikipedia

    en.wikipedia.org/wiki/Newman_projection

    A Newman projection is a drawing that helps visualize the 3-dimensional structure of a molecule. [1] This projection most commonly sights down a carbon-carbon bond, making it a very useful way to visualize the stereochemistry of alkanes.

  3. Anti-periplanar - Wikipedia

    en.wikipedia.org/wiki/Anti-periplanar

    In a Newman projection, the molecule will be in a staggered arrangement with the anti-periplanar functional groups pointing up and down, 180° away from each other (see Figure 4). Figure 5 shows 2-chloro-2,3-dimethylbutane in a sawhorse projection with chlorine and a hydrogen anti-periplanar to each other.

  4. 2,2-Dimethylbutane - Wikipedia

    en.wikipedia.org/wiki/2,2-Dimethylbutane

    2,2-Dimethylbutane, trivially known as neohexane at William Odling's 1876 suggestion, [4] is an organic compound with formula C 6 H 14 or (H 3 C-) 3-C-CH 2-CH 3. It is therefore an alkane , indeed the most compact and branched of the hexane isomers — the only one with a quaternary carbon and a butane (C 4 ) backbone.

  5. Rotamer - Wikipedia

    en.wikipedia.org/wiki/Rotamer

    Above: Newman projection; below: depiction of spatial orientation. In chemistry, rotamers are chemical species that differ from one another primarily due to rotations about one or more single bonds. Various arrangements of atoms in a molecule that differ by rotation about single bonds can also be referred to as different conformations ...

  6. 80-year-old died a month after bed trapped her against a wall ...

    www.aol.com/80-old-died-month-bed-182944808.html

    An 80-year-old woman died one month after her Sleep Number bed suddenly moved without warning and trapped her against a wall for two days last year, a new lawsuit alleges.

  7. William F. Aldinger III - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/william-f-al...

    From January 2008 to April 2010, if you bought shares in companies when William F. Aldinger III joined the board, and sold them when he left, you would have a -37.2 percent return on your investment, compared to a -19.2 percent return from the S&P 500.

  8. GM to retreat from robotaxis and stop funding its Cruise ...

    www.aol.com/gm-retreat-robotaxis-stop-funding...

    The company invested $2.4 billion in Cruise only to sustain years of uninterrupted losses, with little in return. Since GM bought a controlling stake in Cruise for $581 million in 2016, the ...

  9. Gauche effect - Wikipedia

    en.wikipedia.org/wiki/Gauche_effect

    The gauche effect is very sensitive to solvent effects, due to the large difference in polarity between the two conformers.For example, 2,3-dinitro-2,3-dimethylbutane, which in the solid state exists only in the gauche conformation, prefers the gauche conformer in benzene solution by a ratio of 79:21, but in carbon tetrachloride, it prefers the anti conformer by a ratio of 58:42. [9]