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00:14
4
Q: Finding chair and boat transition states during ring-forming reactions

NotEvans.Reactions that form 6 membered rings most commonly go via either boat or chair transition states but the products themselves do not necessarily adopt the same conformation as the TS. I'm attempting to model a cyclisation in which an amine attacks a pi system to form a new ring, giving rise to t...

 
4 hours later…
04:14
0
Q: Interest in "Molecular Design Golf"?

Geoff HutchisonI didn't have much time to participate this fall, and I'm excited to see the synthesis golf questions. Idea: I'd like to suggest possibilities for “molecular design golf” (name TBD). These are questions that point to the diversity and design aspects of chemistry. Some might include or require c...

 
7 hours later…
10:57
@orthocresol Maybe I could use such examples to benchmark the available software for automatic naming.
I think, ACD/ChemSketch has still the most names right as long as you use the current version.
That reminds me that I should check if a new version is available.
Dec 23 at 21:50, by orthocresol
@Loong By this, you mean "compare which software generates more correct PINs", right?
Perhaps we could do this in a meta post.
 
7 hours later…
17:58
@pentavalentcarbon o/
Howizat going?
good, enjoying the remainder of my vacation
catching up on music I didn't listen to during the year
18:14
Nice :)
What are the changes made in the latest blue book, guys?
Blue book means the 2013 version of the official IUPAC nomenclature book.
Is it okay if I use the 2005 version of the book?
I am unable to obtain the pdf of the 2013 edition.
this is the 2005 edition.
Anyone? Any sort of help will be appreciated.
Well @Loong would be the guy to ask about it
@Loong You there?
I guess the 2005 draft is already quite close to the current recommendations.
18:29
What are the changes in the 2013 edition?
That thing has more than 1000 pages. That's not easy to compare.
There is a summary of changes in the preface: dx.doi.org/10.1039/9781849733069-FP027
18:53
@Loong there, they haven't given the differences between the 2013 edition and the 2005 edition.
Sad :/
Is this an appropriate question for Chem.SE?
There is no "2005 edition". The 2005 document was a draft of the 2013 edition.
Oh.
I wish I could get it ...
19:24
@Loong I like the 2005 edition more though
Why that?
@1,3-feeds Geoff AAAAA fanboy scream
19:55
Zinc chloride can be prepared in the laboratory by the reaction between zinc oxide and hydrochloric acid.
The equation for the reaction is
ZnO + 2HCl ZnCl2 + H2O
A 0.0830 mol sample of pure zinc oxide was added to 100 cm3 of 1.20 mol dm−3 hydrochloric acid.
Calculate the maximum mass of anhydrous zinc chloride that could be obtained from the products of this reaction.
According to the answer, there are 0.06 mols of hydrochloric acid, but I can't fathom why
...Can anyone help me with that?
 
3 hours later…
22:45
@Loong I really wish I had ChemDraw 17, but for some reason my institutional license only grants me access to 16. CD17 has some pretty cool features. The name generator probably isn't any better, though.
Most of the time, I still draw in Version 12. Its UI is simply cleaner and I am faster.
Although it's not as bad as with Windows and Office, which went steeply downhill after Windows XP and Office 2003.
Nevertheless, there are some differences in the name generator between Version 12 and 13.
For example, dispiro compounds don't work in 12 but are fine in 13.
23:03
ChemDraw, what's that ;)
powers which you will never possess
it looks like I have 16 installed, I must have used 09 or 10 in college
@orthocresol Was it 7pm somewhere?
Apparently, yes, I checked twice to make sure there was a UTC-4 time zone...
If there is a joke here, I'm failing to get it
23:09
There's a hat for asking a question when it's 7 pm anywhere in the world, and I just asked a question 9 minutes ago.
24 hours ago, by orthocresol
I'll post a new and uninteresting nomenclature question for you at 7 pm soon
Heh, the example N-silylsilan-1-amine has been corrected, too.
Ok.
That -1- was confusing...
But that doesn't answer your question.
Haha, no. But it does cure a bit of the confusion
I have to check when we switch to something like bis(trimethylsilyl)amine.

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