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  2. List of character tables for chemically important 3D point groups

    en.wikipedia.org/wiki/List_of_character_tables...

    The two rightmost columns indicate which irreducible representations describe the symmetry transformations of the three Cartesian coordinates (x, y and z), rotations about those three coordinates (R x, R y and R z), and functions of the quadratic terms of the coordinates(x 2, y 2, z 2, xy, xz, and yz).

  3. Chirality (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Chirality_(chemistry)

    Two enantiomers of a generic amino acid that are chiral (S)-Alanine (left) and (R)-alanine (right) in zwitterionic form at neutral pH. In chemistry, a molecule or ion is called chiral (/ ˈ k aɪ r əl /) if it cannot be superposed on its mirror image by any combination of rotations, translations, and some conformational changes.

  4. Chirality - Wikipedia

    en.wikipedia.org/wiki/Chirality

    The term "chiral" in general is used to describe the object that is non-superposable on its mirror image. [18] In chemistry, chirality usually refers to molecules. Two mirror images of a chiral molecule are called enantiomers or optical isomers. Pairs of enantiomers are often designated as "right-", "left-handed" or, if they have no bias ...

  5. Chiral drugs - Wikipedia

    en.wikipedia.org/wiki/Chiral_drugs

    Chemical compounds that come as mirror-image pairs are referred to by chemists as chiral or handed molecules. [1] Each twin is called an enantiomer. Drugs that exhibit handedness are referred to as chiral drugs. Chiral drugs that are equimolar (1:1) mixture of enantiomers are called racemic drugs and these are obviously devoid of optical rotation.

  6. Molecular symmetry - Wikipedia

    en.wikipedia.org/wiki/Molecular_symmetry

    In other words, a molecule has a center of symmetry when the points (x,y,z) and (−x,−y,−z) of the molecule always look identical. For example, whenever there is an oxygen atom in some point (x,y,z), then there also has to be an oxygen atom in the point (−x,−y,−z). There may or may not be an atom at the inversion center itself.

  7. Trump border czar Tom Homan says he's willing to jail Denver ...

    www.aol.com/trump-border-czar-tom-homan...

    Incoming border czar Tom Homan says he's willing to throw Denver Mayor Mike Johnston in jail over his protests about mass deportation. Homan's comments come after Mayor Johnston said he was ...

  8. Jay Leno Says He Only Sleeps 4 Hours a Night and Never ... - AOL

    www.aol.com/jay-leno-says-only-sleeps-223106981.html

    Early bird gets the worm! Jay Leno opened up about his unusual sleeping habits on the Dec. 22 episode of Bill Maher’s Club Random podcast and revealed he only gets four hours of sleep a night ...

  9. Drone sightings: A timeline of the reports, arrests and calls ...

    www.aol.com/news/drone-sightings-timeline...

    Dec. 8: Residents in Bucks County, Pennsylvania spot what appeared to be five large drones fly about 1,000 feet in the air above the Solebury Township Police Department late at night.