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06:57
should the A be capital or small here?
2
Q: ligand pi system irreducible representation for trigonal bipyramidal transition metal complex

HBHSUI am considering a D$_{3h}$ trigonal bipyramidal transition metal complex MX$_5$. I have found that the irreducible representation for the ligand s and $\sigma$ systems is 2A$_1'$+A$_2''$+E$'$. I have \begin{array}{|c|c|c|c|c|c|} \hline &E& 2C_3 & 3C_2 & \sigma_h & 2S_3&3\sigma_v\\ \hline \Gam...

Tyberius wrote it in small in his answer
07:30
@GaurangTandon Don't edit it
08:00
@AvnishKabaj you know very well I don't edit topics I don't know about (-_-)
Good good
 
8 hours later…
16:35
@GaurangTandon I wouldn't edit it, but I think here they would be uppercase
the intent is pretty clear though
on the other hand the array in the question looks terrible, what's with the vertical bars poking downward
also, why do ChemDraw defaults look so bad
maybe it's because I haven't used it since 2010 or smth but wow
hm. can't "save as", can't lock items to the page. no wonder it apparently works well with microsoft word, they're both garbage
12
Q: How to fix the protruding lines in a MathJax table?

Gaurang Tandon$$ \begin{array}{|c|c|c|} \hline &A&B\\ \hline X&1&2\\ \hline Y&3&4\\ \hline \end{array} $$ Code: $$ \begin{array}{|c|c|c|} \hline &A&B\\ \hline X&1&2\\ \hline Y&3&4\\ \hline \end{array} $$ I've looked everywhere but can't seem to find a fix for this. All the tables I write or see written fro...

@pentavalentcarbon i don't see ChemDraw in that page; or maybe you're talking about something else?
i'm talking about something else
16:56
ok, it doesn't look as bad as i thought but i have no idea how to align the pyrrole properly: chemistry.stackexchange.com/posts/86734/revisions
i bet if i still had chemdoodle it would let me
do you have some specific commands to align?
i always drag the compounds manually in free chemsketch
it doesn't always work though
like just look at those para-terphenyls
9
Q: Most activated position on para-terphenyl for EAS

Gaurang TandonPara-terphenyl: it doesn't look pretty with all those math-y numbers, but those are going to come helpful in answering my question! A question asked me to tell the expected product when this reacts with $\ce{Br2/FeBr3}$. Now, I have done such questions with all types of fancy organic molecules...

There is alignment of objects to a common side
almost seem to be gliding on one another
but there is no "snap" like in PowerPoint, Keynote, etc.
I'm dizzy just from looking at that image
i hit something interesting
lemme see if I can fix that image now
17:01
Anyway, if someone wants to/knows how to fix it in ChemDraw, I'll send them my file...
oh, sad, I never saved my chemsketch file for those ter-phenyls
then they'll stay dizzy like this
forever
I may have tried ChemSketch a very long time ago but didn't see the need to switch, since school always provided ChemDraw
I just realized something that would solve this problem but may take quite some time...
do I hate myself enough yet...
you can draw molecules with code?
cool
like SVG in HTML
or the old-school black screen LOGO turtle
LEFT 60deg
FORWARD 50
LOOP 6 times

oh hey benzene!
ya, it's a LaTeX package, so I'd make a regular LaTeX document, convert PDF to PNG, then crop as needed
I've tried using it in the past but gave up because it was so complicated
and I never need to draw molecules, so...
i guess only scientists researching extremely obscure molecules would need to manually draw the molecules, probably because current software is limited to well-known molecules only
17:11
I remember trying to draw ferrocene in ChemDraw, ChemDoodle, and MarvinSketch and I wanted to go crazy
really? i'd say that's a pretty high-school molecule; we learned about it in coordn chem classes; two pentyl rings pi donating to a Fe+2 ion
right, but you don't draw it like this
or like this
the first image is exactly like how we drew it in school
it should at least look like this
except there were two pi bonds popping from each ring
17:15
that's unfortunate, I'm sorry for you
@pentavalentcarbon anyone who even thought of that is crazy; i mean, two pi bonds formed by that too formed by a metal iron? lol
@pentavalentcarbon ever since i'm using chem.se my list of concepts-my-school-prof-lied-to-me-about is growing much bigger than I thought it would
ah, so beautiful, one of my favorite molecules...
@pentavalentcarbon that's a marvellous creation
but I only value for its good looks, i'm not a chemist; i guess you value it for its important reactions/medicinal uses/etc.?
17:17
any decent inorganic chemistry textbook will show you the real structures
@GaurangTandon you probably don't know what I do then, do you?
@pentavalentcarbon i once saw the third image; the fourth is fresh
@pentavalentcarbon ah, you're a computational chemist?
because I too only value it for its looks, though I might have made it once, I can't remember
@pentavalentcarbon you made a molecule that we kids only think of in dreams?!?! You're really lucky
even worse, I'm a theoretician (ok, maybe 50/50), so basically useless
most people here are computational organic chemists
and I am decidedly not
I think I made acetylferrocene, not ferrocene
interesting
17:20
it's a really nice orange color when properly purified (both of them)
I took a picture...
@pentavalentcarbon i guess that means playing around with molecular properties using code, but that's all I know
@pentavalentcarbon theorist of which field?
well, you're off to a better start than 99% of chemists with that guess...
spectroscopy
that NMR thing? That thing that Rosalind Franklin and those two buddies did? Nice
17:22
originally ferrocene derivatives, then biomolecules, then copper complexes, then ionic liquids, then two atoms
NMR != Rosalind Franklin
you do get to play around with those spectroscope devices, so why a theorist?
@pentavalentcarbon oh sorry X-ray diffraction
i always forget
@pentavalentcarbon they take a long time to study, i guess?
well, it depends on your goals...what's the system, the question you want to answer, your methodology...
oh i see
17:27
you can't wear shorts and sandals in the lab, sooo.....
@pentavalentcarbon so...?
I wanted to wear shorts and sandals to work and you can do that in theory.
that was a motivating factor (seriously)
also I was/am terrible at doing experiments
what's the problem with a lab coat? i mean, i wore the white one once or twice; it looks cool, doesn't it?
it gets old after a while
also please don't tell me you think it's ok to wear a lab coat over shorts and sandals...
since i'm not doing chem all day, whenever I wear the lab coat, it makes me feel I'm in the "chem zone"
feels good
17:37
ok, my picture of acetylferrocene is blurry garbage, just like every organic chemistry experiment I've ever done
and I have never worn a lab coat for fun
well, i don't wear the lab coat for fun; but if I am in sandal and shorts, it'll make me feel like i'm playing with mud and clay; wearing a lab coat makes me realize the equipment being handled is serious and fragile, and will probably break if I'm careless
i'll admit having broken two test tubes in high school
but only two, not more
and nothing else
oh, that's not bad at all, IMO...I think I only broke one or two things in undergrad, and maybe one or two things while teaching in grad school
though, I don't know what the usual rate of "breakage" is
when the first test tube broke, my heart skipped like ten beats in a row, my face was pale, body shivering, and I was about to apologize to my teacher; turns out he'd a dustbin of broken test tubes, that was filled more than a half; i felt so relieved to know i'm not the only one =D
within ten minutes everything was back to normal
as if nothing had happened
i had always thought till that day borosil test tubes are pretty expensive
those really tiny ones are not meant to be reused:
but you probably mean this:
wow, i'm surprised such tiny test tubes even exist
yeah I meant the second one
@pentavalentcarbon what in the world do they use this for?
17:47
I've used them for qualitative testing, demonstrations, ...
even a pipette is bigger; how much those tiny ones hold, 1ml?
or something where you don't want to clean up afterward
no, a little more, maybe 3-4?
I think those are smaller than the ones I used which were 5-6
so you just throw them away after use?
yes; ah, this is interesting:
those might actually be 1 then
now i'm confused as to which one I used in school
15 or 55?
i guess the latter
it was decently big
17:51
55 is really big, I think the Pyrex one in the picture above is ~28.5 or even 23
oh
anyway, i think it's time for me to go now
11:30pm here
good morning/afternoon/night to you! (choose your own timezone greeting)
good night (it's 1 PM EST)
 
2 hours later…
20:12
@pentavalentcarbon You forgot column chromatography.
quietly sobs in a corner
Also, what's the issue with the pyrrole alignment? It looks alright to me... am I missing something
20:49
The top line of the pyrrole isn't perfectly horizontal
Because ChemDraw 16 doesn't have "snap to grid" functionality that I could quickly find
I totally forgot about collecting fractions
I even have visual evidence
or another one of my crappy columns
21:06
about to try chemfig again, hold my café au lait
@pentavalentcarbon there is a 'fixed angles' thingum
oops sorry
I see it and I have it checked, but I need to read the docs because I have no idea what it does
it sort of snaps stuff to... fixed angles... I'm not sure how to describe it.
21:10
mine is aligned with the grid at 1 degree, wtf
and I had to turn Fixed Angles off
Sorry... guess your chemdraw is just weird.
get a refund
that would involve getting the last 6 years of my life back

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