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Showing Visitor Messages 1 to 9 of 9
  1. UncleAl
    3 Weeks Ago - permalink
    UncleAl
    Six fullerenes are perfectly chiral:

    Point group T: C44, C52, C92, C100
    Point group I: C140, C260

    Parity Divergent Molecules
    middle

    If you want a listing by carbon number and point group symmetry of all allowed fullerenes through C260+, it's a 4 MB ZIP archive. However... their structures are only crudely minimized. You'd have to run each coordinate set of interest through BABELwin into *.hin format and then MM+ mininmize in HyperChem-Lite after auto-assigning atom types.
  2. Pyrotex
    3 Weeks Ago - permalink
    Pyrotex
    Uncle Al,
    at last we meet (in a manner of speaking). It is an honor. I thoroughly enjoy your posts, as well as your rapier wit. I suspect you know a great deal about one of my interests: fullerene chemistry. I must say however that my interests are tempered by the sobering fact that as a NASA "rocket scientist", I am (by definition) not an expert in anything.
    Take care.
  3. Turtle
    08-06-2009 - permalink
    Turtle
    i agree definitely Datura. maybe Datura discolor ? Datura discolor - Wikipedia, the free encyclopedia
  4. Turtle
    08-03-2009 - permalink
    Turtle
    on the Datura id Al, i don't think D. metel because of the very thorny fruit Destrb has photographed. according to wicked pediac D. metel has lumpy fruit with few thorns. Datura metel - Wikipedia, the free encyclopedia i see at the same link that D. metel has oval leaves, and again Distrbt's photo not oval but lobed. over...

    as to shoes falling identically, not in a wind they don't.
  5. Turtle
    08-02-2009 - permalink
    Turtle
    i got the contest page read last night, very cool idea, and your entry intro and the comments you have accrued. i have to go back to your full pdf but i'm presuming it is the experiment as you have described it here before. anyway, so-far-so-good and i voted my concience with a big phat 10. maybe now, someone will look.
  6. Turtle
    08-01-2009 - permalink
    Turtle
    the last thing either of us wants is to look like everybody else. i saw the new thread & will be reading the link & your entry soon. always my pleasure to get your spin on things.
  7. pamela
    08-01-2009 - permalink
    pamela
    hello uncle al, i dont believe we have met- i am Pamela
    i am enjoying your posts as well as your essay-thank you
  8. Turtle
    12-04-2008 - permalink
    Turtle
    Any luck with the clusters Al?
  9. Turtle
    04-01-2008 - permalink
    Turtle
    Lovin' the beard Al. I keep trying to grow one, but I can never find the time to not shave.

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