The Periodic Table

Loong

00:22

@Jan You also gave a hat to the other upvoted answers.

Jan

@Loong Guess that’s one secret hat solved, then xD

Melanie Shebel

How do you get hats?

Loong

@MelanieShebel The regular hats are described here: winterbash2016.stackexchange.com

Jan

@MelanieShebel See winterbash2016.stackexchange.com

Melanie Shebel

Lot of people from Pittsburgh on Chem.SE, I'm noticing. Do Carnegie Mellon or Pitt (or Duqu... I'm not going to attempt the rest of the name) require their students/staff to join Chem.SE? Bahahaha

Loong

00:26

And there are also some secret hats.

Melanie Shebel

ooh, I love secret hats

Loong

@MelanieShebel For example, there are two secret hats for editing old posts. You should be able to get them easily. ;-)

Melanie Shebel

Bahahaha

Is there something like Chem Draw that's free? I have a license for chem draw, but it won't install properly. :'(

I want to edit this post with hand drawn structures with pretty chem draw, but I can't.

Loong

@MelanieShebel There is a free version of ACD/ChemSketch: acdlabs.com/resources/freeware/chemsketch

Jan

00:54

@Loong Hm, it’s not as simple as editing one old post though, so it seems =C

Loong

@Jan yeah, it could be more than one old post. One hat might require a removal of tags and/or remove some of the text. The other one might require that you add something to the text.

Anyway, I have got both hats without editing 100 different old posts. ;-)

Jan

Perhaps it might also require the last community bump not having occurred recently.

Loong

ok, yes, "old" could mean "inactive since …" here

Zhe

01:55

@hBy2Py Spent my 5 years in Bldg 18

getafix

03:16

The hats are here!! yay

And I finally collected fanatic

hBy2Py

@Zhe Makes sense!

Also, HA. Google Maps apparently thinks 66 no longer exists:

google.com/maps/search/mit+building++18/…

When were you there? I was 2004-2011.

hBy2Py

03:56

I think I finally figured out what you were talking about, @penta. How's it now?

getafix

@hBy2Py you were at MIT too? So cool

pentavalentcarbon

04:50

@MelanieShebel No, actually I don't know of anyone from CMU or Duquesne (pronounce it like "do-cane") on here, just me and Geoff.

For a free ChemDraw alternative I use MarvinSketch.

@hBy2Py I think it's much better. Now I'm not so sure it's meaningful, though, because most of the time data isn't presented that way (shifted).

Melanie Shebel

05:06

Ah, just noticed Pittsburgh a lot, haha.

So you are at Pitt? My research advisor went there.

Are you in comp chem, @pentavalentcarbon?

Oh, I'm loving this MarvinSketch! Thanks~

Martin - マーチン

09:28

@Jan & @hBy2Py True indeed; I really don't need the reputation... and it's getting difficult to get rid of it again. Plus, due to the bounty and the attention the question got, I already gained a lot of reputation. And I thank you for that :D

orthocresol

09:42

@Melanie I did. And I was the one who specifically told the OP to post four questions instead of one, as they are dealing with different concepts altogether and deserve to be treated separately.

(Therefore if anybody has an issue with this, please bring it up with me, not OP.)

I personally don't think there's anything wrong with posting multiple homework questions in succession and don't know why all questions got downvoted to -3. The policy is very straightforward: if effort is shown, then it is fine, and if effort is not shown, then it is not fine. Perhaps, the only argument is that the "effort" provided is minimal. If that is the case, then the community should vote to close (fine by me).

Now, I'm going to ChemDraw-edit everything and they're going to get upvotes.

orthocresol

10:42

(And if you guys upvote them, you may get a secret hat ;)) (Of course, you don't have to. Votes are your own choice.)

Martin - マーチン

@orthocresol NOW I GET IT!!!

getafix

won a secret hat! yay!!

orthocresol

shucks, my cover's been blown

getafix

haha

and i take my last exam for the year tomorrow..

finally..sigh

orthocresol

Isn't that a good thing?

getafix

11:00

Sigh of relief hah

orthocresol

@getafix When does your year run?

Martin - マーチン

arghh... something is broken in my computer...

i want to hand out a bounty, but nothing happens when i click next :'(

getafix

i meant calendar year not academic year

but from oct to first week of feb

and then from april to end of july

@Martin-マーチン try a different browser/device?

orthocresol

@getafix wait, you are in GMT +5:30, right?

no

GMT+10?

no

Oh god, why am I doing this.

Why can't I just ask "which timezone are you in"

getafix

+9.00 here in japan

funny cause india is +5.30 haha

orthocresol

11:11

Yes, I was getting very confused, as you can tell T_T

You got the sun badge. I have the moon badge...

getafix

ah i see.

Why aren't you wearing your hat? haha

i for the life of me don't know why I wont the secret hat though lol

orthocresol

I'm waiting for an appropriately seal-y hat :D

getafix

haha lol

fair enough

orthocresol

None of the ones I have now seem to fit me very well

Where in the World is a weird hat, I can't figure out what triggers it.

getafix

yeah all i did (around the time the hat appeared) was answer a question, and got a upvote from it

orthocresol

11:18

I've managed to trigger it reliably by upvoting two questions. I now have the hat on Chemistry, Meta.SE, Academia, Physics, and Music.

getafix

hmm interesting

ah shucks..speaking of physics.

I have 5 assignments over due

totally forgot about them

there go my plans for the week/weekend/christmas

orthocresol

b-b-but we all love doing chemistry and physics

getafix

I don't mind the assignments actually..I hate exams.

unfortunately, because of said exams I kept asking for extensions on the assignments, and now doing all of them all at once over christmas break seems like a pain haha

one of them is like 5 weeks overdue or more.

orthocresol

oh... that's a nasty backlog

getafix

yup

fortunately, it's all with the same professor..two separate courses though..but anyway, he's a cool guy

and he understands

orthocresol

11:30

Ah, that's good.

I've been very lucky, my tutors have all been very nice people

getafix

yeah I like professors like him, who value learning more than enforcing deadlines. It is kinda pointless if i meet the deadline, but do a shoddy job because I had too much on my plate

orthocresol

Yes!

getafix

for instance i hate my ochem professor..her exams actually. they are laughably easy sometimes, but so long. It's not really a test of organic chemistry knowledge, but of how fast you can write.

I have literal cramps in my hands afterwards lol

and then she is pedantic when she grades..oh I can't read what you wrote there..boom, minus points

orthocresol

sounds like a bio exam (which is a shame cause I like biology)

that's not pedantic, that sounds like being nasty for the sake of being nasty

getafix

2/3 of my bio profs were really good

I stopped taking bio courses because after second year, they were taught by mostly japanese faculty

and their teaching philosophy is..memorise every single word in these hundred pages.

done

the biology professors i had up to second year were pretty cool, and gave really interesting exams/assignments

orthocresol

12:23

Meanwhile, Wolfram just sent me 10 emails. They send me one email for every version of Mathematica I have ever had on every OS I ever downloaded it on.

set of versions = (10.0.2.0, 10.2.0.0, 10.3.1.0, 10.4.1.0, 11.0.1.0)
set of OSs = (OS X, Windows)

getafix

12:36

lol haha

Why?

I still use version 10. Should I get a copy of 11?

orthocresol

I think they were trying to send me a new activation code because the old one expired or something. re. 10 vs 11, I don't know, I don't use Mathematica much at all, so...

getafix

12:52

ah I see.

I wouldn't count myself a heavy user, but does come in handy every now and then.

orthocresol

14:44

@Hexacoordinate-C: onlinelibrary.wiley.com/doi/10.1002/anie.201608795/abstract

Hexacoordinate-C

15:02

@orthocresol hey, @Jan ever shared it ! :P

pentavalentcarbon

@MelanieShebel yes and yes

Bounty Hunter

15:16

11

Q: How does composition of air affect vapor saturation limit?

Suppose we hold temperature, pressure, and gas composition (say, a standard atmosphere) constant. Then we know that if we allow the water content of the air to vary it can range between 0 and some saturation limit S g/L. How does that saturation limit vary with the composition of the air? For ...

Loong

Write a good answer and win a bounty or a secret hat.

5

orthocresol

@Loong I will wait for somebody to write a good answer, then I will write a slightly less good answer.

@Hexacoordinate-C Oops, I don't remember... Hahha

Loong

@orthocresol Hat abuse!

refunds all bounties

orthocresol

Seriously, I would do that SeO2 one, but rather short on time now.

Hexacoordinate-C

15:39

It will take time to make a very great answer for the equilibrium of water in air

I need to look at the Perry's

Martin - マーチン

16:31

Martin

Thanks for the email. The search function is currently not working.
It will be a couple of weeks before I have a fix. I suggest using google to do the search in the meantime

i.e. to search for stability enter ‘stability site:goldbook.iupac.org’ in google

Stuart

3

In case you're wondering about the malfunction of the good book

Jan

@Martin-マーチン But why would you want to get rid of it? =D

Martin - マーチン

@Jan If you can't answer that question ...

Jan

Okay, which site’s rep should not exceed your chem rep? xD

Martin - マーチン

I only participate regularly here, so that's a no problem. I just want to give it to active people to climb up the ladder faster and help out more, or encourage them to stay... that's all.

Bounty Hunter

16:47

9

Q: What are modern approaches to describe and/or quantify aromaticity?

I know that Schleyer described an approach for evaluating aromaticity by taking the 13C chemical shift into account (see e.g. Chem. Rev., 2005, 105 (10), 3842.) quite some time back. I also somehow have the feeling that there should be a more direct way to describe aromaticity than via chemical s...

organic-chemistry computational-chemistry aromatic-compounds

orthocresol

@BountyHunter @Martin-マーチン If you offer another bounty on Jan 1st, and award it on Jan 8th, you get a hat.

(Technically, just have to award it on the 8th; but since we like leaving bounties open for 7 days, that means putting it up on New Year's Day.)

Martin - マーチン

This is too complicated, I'll forget that.

I really need a success story for my bounties now... the last one was a no-show...

pentavalentcarbon

@Zhe I am trying to find a parking spot in Alewife and will definitely be late.

orthocresol

0

Q: Organic Chemistry by Clayden

Just to give a little relevant background here, I'm a 15 year old and I've completed General Chemistry, having used Zumdahl, and I did start on Organic Chemistry by Maitland Jones and Steven Fleming a few months back. I'm also doing Physical Chemistry by Levine as well as Physics so I believe tha...

organic-chemistry books

Maybe, primarily opinion-based, thoughts?

Martin - マーチン

ohhh title... noice

Melanie Shebel

16:53

@orthocresol My apologies for earlier. I removed comments and upvoted. They appeared to rapid-fire samey questions.

Jan

@orthocresol Yes.

Melanie Shebel

I'm so sorry. I hope the user is not upset.

orthocresol

@MelanieShebel No worries. He got answers to all his questions anyway, so everybody wins here. ;)

"inb4 primarily opinion-based"

Again, I realize that book recommendation questions are subjective, I'm not stupid, and I realize that there will be someone who will remind me of that, which isn't particularly helpful. — Abhijeet Vats 54 secs ago

Martin - マーチン

lolz

but cut through the unnecessary wording, it boils down to 'Is Clayden a good book to start learning for Organic Chemistry?'

Which is subjective, obviously, but strangely i would say this question - while not ideal - is ok.

Loong

@Martin-マーチン I thought it was "I am 15 and I want to tell you that I am reading university-level chemistry books."

Martin - マーチン

16:58

that's what I meant with 'unnecessary wording'

orthocresol

It got updated:

Again, I realize that book recommendation questions are subjective, I'm not stupid, and I realize that there will be someone who will remind me of that, which isn't particularly helpful. I'm just looking for the opinions of someone who has gone through organic chemistry and has used Clayden. I want to see what these people say about the book and how useful it would be as an introductory text. So, if you have nothing of that degree to say, with all due respect, stay away. — Abhijeet Vats 4 mins ago

Zhe

@pentavalentcarbon no worries

Martin - マーチン

tbh. Clayden was the only OC book I read (completely)

Zhe

Turns out, it's very good

orthocresol

Stuart Warren designed the undergrad org chem course at Cambridge.

Zhe

17:02

Oxbridge for the win

orthocresol

I can't stand Atkins, though.

Martin - マーチン

Yeah that diet sucks!

pentavalentcarbon

@Zhe ok. Train leaving now.

orthocresol

hmm, >10k: chemistry.stackexchange.com/questions/57148/…

Loong

@orthocresol We know. ;-)

Sep 25 at 16:18, by orthocresol

@Loong I just wanted to tell you I hate everything of Atkins.

orthocresol

17:05

Sep 25 at 16:19, by orthocresol

He donated free copies to the library.

Lemme see if I have the pic.

Zhe

@orthocresol hmm... Deleted...

@pentavalentcarbon I'm next to the life sized Android statue whenever you get here

Martin - マーチン

my phys chem by atti was the perfect size to give my monitor the eye-level it required :D

pentavalentcarbon

Alright.

Loong

If you always wanted to know what happens to the photon when it is absorbed by a molecule:

-4

A: How does a photon travel the speed of light while it is absorbed in a molecule?

How does a photon travel the speed of light while it is absorbed in a molecule? By going round and round. Since photons always travel the speed of light and continue to exist after they are absorbed in a molecule that they hit, then what are the mechanics of a photon traveling the speed...

Jan

@Loong The wheels of the photon go round and round …

Loong

17:12

That reminds me of my current meta question. What would we do with such an answer?

orthocresol

@orthocresol Ah, never mind, I can't.

Zhe

Kill it. Kill it with fire

orthocresol

@Loong Guy's retired from chemistry. Now he just spends his time being an atheist.

Jan

@Zhe Put in downvoting hell but keep it alive. (aka Mart’s answer)

orthocresol

Best friend of Richard Dawkins, also from Oxford.

@Zhe (Please vote on the meta post if you haven't already ;))

Oh, I did find this in one of the Oxford Chemistry Primers.

Loong

17:20

@orthocresol Now everybody is looking for a meta post about Oxford.

orthocresol

groans

signs of a disordered mind

Loong

@orthocresol Is that supposed to be a bell?

orthocresol

It looks like a lantern to me.

Paper lantern

A paper lantern is a lantern made of thin, brightly colored paper. Paper lanterns come in various shapes and sizes, as well as various methods of construction. In their simplest form, they are simply a paper bag with a candle placed inside, although more complicated lanterns consist of a collapsible bamboo or metal frame of hoops covered with tough paper. Sometimes, other lanterns can be made out of colored silk (usually red) or vinyl. Silk lanterns are also collapsible with a metal expander and are decorated with Chinese characters and/or designs. The vinyl lanterns are more durable; they can...

Man it's been ages since I played with one of these.

Mid-Autumn Festival

The Mid-Autumn Festival (traditional Chinese: 中秋節; simplified Chinese: 中秋节; Vietnamese: tết Trung Thu) is a harvest festival celebrated by ethnic Chinese and Vietnamese people. The festival is held on the 15th day of the 8th month of the lunar calendar with full moon at night, corresponding to late September to early October of the Gregorian calendar with full moon at night. Mainland China listed the festival as an "intangible cultural heritage" in 2006 and a public holiday in 2008. It is also a public holiday in Taiwan, and in Hong Kong. In the Vietnamese culture, it is considered the second-most...

Jan

18:07

I am now a taco =D

Jan

18:37

> Imagine getting your question closehammered by a 1-rep user, that would be funny... (orthocresol, 2016)

Posted here for posteriority.

Loong

@Jan Strictly speaking, the comment is not correct. Even moderators need 5 rep in order to participate on a site meta.

Jan

@Loong So community cannot participate on meta? How sad =C

Loong

At least community has a hat.

Jan

Not everywhere, though

Loong

Yes, you need a site mod to change it.

Jan

18:49

Oooooh =D

Does community have access to all hats?

Loong

Community collects hats like any other user. It has 6 different hats from various sites right now.

chemistry.stackexchange.com/users/-1/community#winter-bash

Jan

So some hats will remain forever locked to community by the looks of it.

pentavalentcarbon

19:45

I am now 2 for 2 in meeting extremely nice people from Chem.SE in real life.

@Jan if I give an answer to that awful boron aluminum question will you bounty me?

Jan

Real life … that’s the place where the pizza guy is from, isn’t it?

@pentavalentcarbon Which one?

pentavalentcarbon

The one I think you have a 400 rep bounty on now

Jan

Why is it awful?

(The bounty’s Mart’s)

pentavalentcarbon

It's not actually awful, just...ehhhhhhhhh

Zhe

@Jan nice answer on the CDCl3 splitting question

+1

Jan

19:51

@Zhe Hat incoming (づ｡◕‿‿◕｡)づ

Zhe

$\text{J\^{a}n}$?

aw...

Jan

20:12

@Zhe @$\widehat{\mathrm{Jan}}$

Zhe

srsrly, widehat?

Jan

0

A: Formatting Sandbox II: please test stuff here

@$\widehat{\text{Jan}}$ This is just to show off the wide hat.

Zhe

Thanks for the link to the sandbox

Jan

23:57

I found a paper by Barbosa in my list of references. I wonder if I can also find J. Sparrow.

Loong

@Jan maybe something about rum?

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