The Periodic Table

3:09 AM

@hBy2Py congratulations

You're 3 answers away form getting computational-chemistry

3:23 AM

@hBy2Py great! :D

8 hours later…

11:10 AM

@AvnishKabaj Heh, I've been a couple of answers/upvotes from a handful of tag badges for a long time.

Hafta actually answer things to get the things.

Q: Why does bond angle decrease in the order H2O, H2S, H2Se?

11:22 AM

Looks like it's time ;)

Bounty Hunter

11:38 AM

I know that bond angle decreases in the order $\ce{H2O}$, $\ce{H2S}$ and $\ce{H2Se}$. I wish to know the reason for this. I think this is because of the lone pair repulsion but how?

2 hours later…

1:11 PM

@BountyHunter 7 concurrent bounties! I believe that's a record in the site's history, is it?

(and that too worth a total 900 points!)

1:33 PM

@Loong Are you, as a mod, able to invite sub-20-rep users to a specific chatroom?

Q: In Reimer-Tiemann reaction why does phenol attack the carbene from ortho position?

2:02 PM

@Zhe does the ordered transition state really matter a lot in this case?

From the Wikipedia article on Reimer-Tiemann reation: In step 5, why doesn't the oxygen attack the carbene. The way I see it: upon attacking the carbene from ortho position, the mechanism proceeds via a non aromatic intermediate. Oxygen bearing a negative charge is a good nucleophile too...

organic-chemistry reaction-mechanism carbonyl-compounds

Loong

2:22 PM

@hBy2Py Yes, we can do that.

@AvnishKabaj What does that even mean? Of course order matters. Somewhere the real mechanism is what it is. Order may not affect the things you care about, but it definitely matters.

@Loong Ok. Please invite the OP of this question to this chatroom -- thanks!

@Zhe So Soumik's answer is spot on?

2:38 PM

No mechanistic hypothesis can be spot on

That's not how mechanisms work

I'm a bit suspicious about such a highly ordered transition state

@Zhe Prohibitively large activation entropy?

@hBy2Py bingo

But these things are hard to predict. Solvation effects are very important

M.A.R. ಠ_ಠ

@GaurangTandon many non knowledgeable eyes

And we're not asking about gas phase mechanism

M.A.R. ಠ_ಠ

Or dumb, if they do answer without knowing

2:40 PM

@Zhe I think riemer teimman is done in aqueous

Should I be satisfied with this

@AvnishKabaj I'm not sure what you're asking still

@AvnishKabaj Summer is usually pretty slow... at least, it always has been the span of time I've been on the site.

@Zhe my question?

By satisfied I meant by Soumik's answer because questions like the one I'm asking don't generally have answers in literature

@hBy2Py I compared the stats with the last month they are lower

And the traffic this year is lower too

3:09 PM

@M.A.R.ಠ_ಠ ahh true that

@hBy2Py compare to that the pic avnish showed from jun 2017, last year's summer...

@AvnishKabaj link to that SEDE query please?

@GaurangTandon data.stackexchange.com/chemistry/query/649165/…

@GaurangTandon

Jun 13 at 0:05, by Avnish Kabaj

in Spring Cleaning, 8 hours ago, by Gaurang Tandon

@Martin-マーチン whoa. what do we infer from that? That we've had a number of very specific conceptual queries over the years, but we've been closing them all. I have changed my mind over the past month - when my eyes opened as I read our tour page - our aim should be to be a detailed library of every question about Chemistry, and that each question should have some long-term value. So i'm all in for such a transition from the current policy to a conceptual one, at least even as a part of an experiment

Doing anything about this?

not yet, i'm busy with counselling these days...

@GaurangTandon o right

Decided anything?

2 hours later…

5:11 PM

@GaurangTandon How is counselling done? Who does it? What is it about?

@Abcd branch counselling

All institutions do that

@AvnishKabaj All IITs or all unis

@AvnishKabaj what is it about

@Abcd all

who = which person does it

Basically after you get your admission results

You do have to go to the university

To get admitted

So you talk with the representative

They tell you what branches you'll get for what marks

Whatnot

5:18 PM

@AvnishKabaj who is that

who is the representative

who will be my representative

@Abcd dunz man

Someone who works for the college

@GaurangTandon Do you do online chat with them or do you do phone call chat with them

@Abcd chill dude, it's very easy these days. You just fill your choices (favorite programs) online. In round 1, you get a certain seat. You need to go to the reporting center to verify documents and accept Seat. If you wish to upgrade your program, you wait for later rounds.

you lock your seat when you are happy with it

If you are never happy you can withdraw at penultimate round

@GaurangTandon what if you dont lock in round 1 and when you go to last round you realise that you are happy with round 1 seat :O

@GaurangTandon what is a "program"

@Abcd that I dunno :/

@Abcd institute+department+dept's course (ex: IIT Kanpur+Computer dept + CSE B Tech)