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1:58 AM
@pentavalentcarbon Right! Weren't you one of the people I was speaking with who's an ORCA user?
 
 
1 hour later…
3:13 AM
@CowperKettle I'm thinking that polyethylene has its name for the same reason that North American native people are still often called "Indians" even though we've known darn well for over 500 years that this isn't India. The first syntheses of polyethylene were involving diazomethane (which can form alkenes) and ethylene, so back when it was called "polymethylene" (a somewhat better name, in my opinion), the "ene" part probably came from less certainty and questionable agreement on nomenclature
and then when it became "polyethylene", it was probably just because it was from a polymerised form of ethylene.

But that's all speculation.
 
f''
3:39 AM
6
Q: What is the difference between polyethene and polyethane?

SamThe monomer in polyethene seems to drop the $\ce{C=C}$ bond and end up with a $\ce{C-C}$ bond. The polymer chain then looks like $\ce{[CH2-CH2]_{n}}$. If I were to look at that polymer chain I would probably call it polyethane not polythene (or I could even call it polymethane) because it doesn't...

 
 
3 hours later…
7:05 AM
@ninth_account I use almost everything.
 
7:45 AM
Wait, I owe you input file examples! I'm sorry months have passed...
 
 
3 hours later…
10:58 AM
@NotNicolaou No need to be sorry. ;-) It's not your fault that a free version of the current recommendations is not legally available.
At least you used the latest free 2004 draft. Many websites and books still refer to the 1993 recommendations.
 
user116211
@Loong What's this?
 
user116211
@CowperKettle He switched to the Dark side of the Force..... the Empire ;P
 
@MAFIA36790 That’s an electronic pipette with two multi-channel versions.
 
user116211
@Loong oh....never saw that.
 
user116211
Our school's laboratory still contains 60s equipments.... rusted T__T
 
11:19 AM
@loong My university has a subscription to it (I think we've talked about this before) but its not searchable.. all the pages are just images. I tried OCR'ing the whole thing but it was woefully slow / basically impossible
 
@MAFIA36790 Namaste! Good afternoon all.
 
user116211
@CowperKettle o/
 
@NotNicolaou Yeah, the current situation is not helpful. The IUPAC recommendations are not really a standard as long as most users do not have easy access to it.
@CowperKettle hi
 
@Loong I do find it odd how closed off they are. Most standards are at least available online in a useful format even if charges are made for hardcopies
 
@NotNicolaou Yes. And the fact that they have moved Pure and Applied Chemistry to de Gruyter didn't help.
 
11:28 AM
:( I did manage to find a searchable version in Polish... sadly it defeated the point and I dont speak polish
 
You need to polish your Polish, and then you could read it. ^_^
 
:P
Attempting to OCR the whole PDF. This could take some time .
 
12:24 PM
chemistry.stackexchange.com/questions/55461/… This looks like it could be such an interesting question, just a shame about how its presented :/
 
12:41 PM
@NotNicolaou OP has just made an edit in reply to my comment.
 
1:01 PM
> In the case of the antiviral drug ritonavir, not only was one polymorph virtually inactive compared to the alternative crystal form, but the inactive polymorph was subsequently found to convert the active polymorph into the inactive form on contact, due to its lower energy and greater stability making spontaneous interconversion energetically favourable. Even a speck of the lower energy polymorph could convert large stockpiles of ritonavir into the medically useless inactive polymorph
Wow.
 
@Loong. Excellent!
@CowperKettle.. surely this interconversion can only happen in the solution phase?
 
I don't know.. I'm reading European Pharmacopea. Came across this term, "polymorphism", and opened the Wiki article, and found this.
 
1:23 PM
I just learnt today that you can write things like [edit] in comments and it will take the user to the edit page... what other [x] things work?
5
 
12
A: Complete list of help center magic links

T.J. CrowderIt would appear that nicael is correct, that's the complete list. Here's the most complete list of magic links I can find (both help center and other), from Laura's answer and the balpha answer nicael linked to: [help] -> /help (the help center landing page for whatever site you're on) [help/on...

3
 
user116211
You must be Dark Magician @loong ;)
 
7:01 PM
!!coffee
 
!!water
Bad robot
!!chemobot
 
7:33 PM
Hey all! Sorry I had to be away and disappeared in such an abrupt manner. ISP issues and all. The issue will hopefully be resolved in a few days and I'll return with full strength. Long live chat
2
@CowperKettle 'cause the monomer
"A bunch of ethene guys happily sharing electrons"
 
8:33 PM
@pent
oops
@pentavalentcarbon No worries! You technically "owe" me nothing. But I do have a question about ORCA TD-DFT, if you'd be up for it...
 
 
1 hour later…
9:42 PM
!!beer
 
10:32 PM
Hey TIPS
 
10:54 PM
is extracting oxygen from water impossible?
for reals
 

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