International Science
POSTED BY: rue
UPDATED: Friday, June 16, 2006 18:27
VIEWED: 2081
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Single-handed resolve
It's the Holy Grail for many chemists - a solution to the problem of how to separate enantiomers, without using complicated chiral processes. Many have tried, many have failed, now we must hand it to Chinese researchers who claim to have cracked the chiral code.
Chunying Duan and colleagues at Nanjing University observed spontaneous resolution of silver helicates without using any chiral additive. The key lies in the how the ligand bonds to the first metal center and passes on the chirality as the helix forms. C-H…pi and pi-pi stacking in the aromatic centers of the ligands result in only one handed form of the helicate forming and crystallizing.
Nearly everything I know I learned by the grace of others.
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Pretty interesting. Have you got the link? Unless you got that from a printed article, in which case, have you got the reference?
Other people can occasionally be useful, especially as minions. I want lots of minions.
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Quote:
It's the Holy Grail for many chemists - a solution to the problem of how to separate enantiomers, without using complicated chiral processes. Many have tried, many have failed, now we must hand it to Chinese researchers who claim to have cracked the chiral code.
Chunying Duan and colleagues at Nanjing University observed spontaneous resolution of silver helicates without using any chiral additive. The key lies in the how the ligand bonds to the first metal center and passes on the chirality as the helix forms. C-H…pi and pi-pi stacking in the aromatic centers of the ligands result in only one handed form of the helicate forming and crystallizing.
Holy crap. Is this *in* Chinese? I had trouble with that during the series, too. So the chimera stuck his hoo-hoo-dilly in the chinese scientist's cha-cha?? /boggle
Look, up in the sky...was that a plane?
Amiton.
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Quote:
Originally posted by Amiton:
Holy crap. Is this *in* Chinese? I had trouble with that during the series, too. So the chimera stuck his hoo-hoo-dilly in the chinese scientist's cha-cha?? /boggle
Amiton.
I thought it was just me!
I am on The List. We are The Forsaken and we aim to burn!
"We don't fear the reaper"
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Quote:
Originally posted by FutureMrsFIllion:Quote:
Originally posted by Amiton:
Holy crap. Is this *in* Chinese? I had trouble with that during the series, too. So the chimera stuck his hoo-hoo-dilly in the chinese scientist's cha-cha?? /boggle
Amiton.
I thought it was just me!
I am on The List. We are The Forsaken and we aim to burn!
"We don't fear the reaper"
I guess we're just on a different level. I think Rue has quite the track record of documented intelligence, so I don't feel too badly.
I did think I had a chance to figure it out when I started looking up the really foreign-looking words in the paragraph that I could tell weren't people's names. NOPE! I'm still as lost as ever.
Amiton.
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I did eventually get it. But I had to stop looking at Ctrl Alt Delete and really pay attention!
LOL!
I am on The List. We are The Forsaken and we aim to burn!
"We don't fear the reaper"
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http://www.rsc.org/Publishing/Journals/cc/News/B604066g_duan.asp
Here is the link. The publication is "The Alchemist Newsletter". Unfortunately, I signed up so long ago I don't remember if you have to be registered. If you have trouble accessing the full article, I could post it here.
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I was completely thoughtless when I posted this. Most of learning something is learning the language, where if they just talked in regular words, everyone would know what it was. Below is a better version.
It's the Holy Grail for many chemists - a solution to the problem of how to separate different configurations of the same molecule, without using complicated asymmetric chemicals. Many have tried, many have failed, now we must hand it to Chinese researchers who claim to have cracked the configuration code.
Chunying Duan and colleagues at Nanjing University observed spontaneous separation of silver-containing helixes (which like spiral stairs can twist to the right or left) without using any asymmetrically configured additives. The key lies in the how the silver-complexer attaches to the first metal center and passes on the directional twist as the helix forms. Bond stacking results in only a one-handed form of the silver-complexer helix.
The sound of one-hand clapping
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Seems like access is free. Here's the link directly to the article for anyone who's interested:
http://www.rsc.org/delivery/_ArticleLinking/DisplayHTMLArticleforfree.
cfm?JournalCode=CC&Year=2006&ManuscriptID=b604066g&Iss=Advance_Article
Thanks, rue!
Other people can occasionally be useful, especially as minions. I want lots of minions.
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That's awesome.
I remember chirality, enantiomers, and diastereomers making head spin during organic chemistry. Thank goodness there's only 1 more time in my life that I really have to focus long and hard on it.
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I am on The List. We are The Forsaken and we aim to burn!
"We don't fear the reaper"
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