(Oligomer) size does matter
March 8th, 2010 by excimerI swear to god, they’re just doing this on purpose now:
“Synthesis and molecular properties of donor–π-spacer–acceptor ynamides with up to four conjugated alkyne units.” pi-spacers. Because they space out pi orbitals. Girl.
However, the results of the paper did show that “intermolecular charge transfer” does “decrease” as the “length of the pi-spacer” “increases” beyond two “alkyne units.” Apparently for maximal “charge transfer” in “oligoynes” there’s a tradeoff between “length” and “pi-donating ability.”
…penis.
Hmmm… the link is broken, NSFW perhaps?
Now they just need to test the preference for various crown ether ring sizes.
ugh. people need to register DOIs before publishing.
OK, it works now…
All bodily comparisons aside, I wonder why they opted for the N-benzyl-tosyl amino and dyinamide systems as opposed to a good old dimethyl or ethyl amino group?
Nothing really new here I have to admit, push-pull systems are rather old hat. I suppose they could work with Koen Clays and Andree Persoons in the Netherlands and get some reasonable second order NLO numbers.
KC and AP are from Belgium…
“B*****m” is the rudest word in the universe, which is “completely banned in all parts of the Galaxy…
alkynylamines without a stabilized nitrogen will just polymerize or hydrolyze. The amides are far more stable. They’re a relatively unexplored functionality and I thought the paper was cute, though I would have liked to have seen NLO measurements.
Similar looking work has already been reported.
http://pubs.acs.org/doi/abs/10.1021/ic0352250?journalCode=inocaj&quickLinkVolume=43&quickLinkPage=3521&volume=43
hehe. CT.
what about LE
this article’s companion:
http://pubs.acs.org/doi/abs/10.1021/jp1001513
christ, i spoke too soon!
http://pubs.acs.org/doi/abs/10.1021/cb100003r
hey, as long as we’re posting giggly penis humor, how about this epic title:
http://dx.doi.org/10.1016/j.jmb.2008.07.018
So when did the dick joke become the official gag of chemistry?
You said “gag”
When was it not, if not ‘the’ joke, at least one that is, um, well-worn?
Needs a cyclodextrin – no glove, no love.
I honestly would like to believe that the researcher was completely unaware of the compound they are making but surely someone around their labs would be like “yeah, I’m making tiny tiny phalluses again this week”
if you take the IR spectra of these things you can make them vibrate
If I ever get a chance to develope standardized unit of molecular length I was going to call it the “Johnson”
Does it interact with copper nanotubes?
http://pubs.acs.org/doi/abs/10.1021/ol100578z
“Through the annulus…”