| There are a lot of reasons to grow
| |
| | diffuse in there. As the polarity SLOWLY
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| crystals in research, but none of them
| |
| | changes, the thermodynamic wonders of
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| are more important than the journal bump
| |
| | crystallization occur. In the case to the
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| they cause. As it turns out, even
| |
| | left, I've put some of my new synthetic
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| collecting a crystal can be its own
| |
| | target, Tiklemaitaint A, into a vial
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| publication, albeit in a less than
| |
| | filled with dichloromethane and I've
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| interesting journal. Therefore, it is
| |
| | allowed pentane to slowly diffuse into
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| with great efforts that we try to grow
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| | it. If you look closely you'll see some
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| crystals.
| |
| | pretty crystals.
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| For those of us in the natural products
| |
| | Another method that's very popular is to
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| game, crystals all but remove the
| |
| | simply allow for slow diffusion. This
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| ambiguity with any relative
| |
| | method is more straight forward. You
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| stereochemistry. This way, we only have
| |
| | simply layer one solvent on top of
|
| two possible molecules to make. SURE, you
| |
| | another and the slow diffusion process
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| can say you've made heptacene and
| |
| | causes crystals to form in the middle.
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| stabilized it by various things, but
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| | So, that's pretty easy. Then again, the
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| you're assured a JACS or Angew paper if
| |
| | easiest way is to just keep some of your
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| you can give 'em a cif file. And since
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| | crap in an NMR tube and forget about it
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| blogs are useless (imho) if they fail to
| |
| | and then one day look over and discover
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| inform, I'll show you how 'ol Kyle grows
| |
| | amazing crystals. That's possibly the
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| up his crystals.
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| | best way to do it, since there's no
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| I do my own data collection at our world
| |
| | effort and it's always a surprise.
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| famous crystal structure facility, mount
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| | You can also cap your NMR tube (or any
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| my own crystals, solve my own
| |
| | vial, really) and drop it into a (really
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| diffractions and whatnot, so I've vested
| |
| | good) dewar with some hot solvent. Cap
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| a lot of interest in this sort of stuff.
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| | that baby tight and put it in the
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| That isn't to say I'm an expert, of
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| | freezer. Hopefully, it will take a few
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| course. Now, all I do is organic crystals
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| | days for the solvent to get down to zero,
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| that aren't air or moisture sensitive. So
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| | at which point you can extract your vial
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| this isn't an exhaustive review by any
| |
| | and MAYBE see some crystals. If you're
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| means. For a more in depth guide, I
| |
| | lucky enough to work where there is a -72
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| suggest you look at this.
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| | chill room (or -20 or -50) (a deep
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| First thing I usually try is to do a
| |
| | freezer works too, if you have the space)
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| vial-in-vial vapor diffusion. This is a
| |
| | where you can just plop it in. (If it's
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| simple little ditty in which one places
| |
| | owned by the asshole biochemists, tell
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| their compound inside of a small vial in
| |
| | them it's DI/DI sugar water. It's alright
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| a solvent it is reasonably soluble in and
| |
| | to lie to biochemists. They'll believe
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| putting it in a larger vial filled with
| |
| | anything if you tell them entropy made
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| volatile solvent that it is not soluble
| |
| | you do it.) I've never tried to make
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| in at all. Overtime the volatile solvent
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| | crystals at the low temperature. I can't
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| will evaporate up and into the less
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| | imagine mounting them would be that fun.
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| volatile solvent and slowly dissolve and
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| |
|
