Organic Chemistry Question

['Hamas' Jenkins]

This one has me totally vexed. Any help you could offer on where to put the arrows would be greatly appreciated.

http://i58.tinypic.com/2mwzgq0.jpg


It looks like it's already done. I'm not sure if I should approach it as conjugated pi bonds or not.

[TribalElder]

aliens bro

[Don Corlemahomes]

What if you start with the lone pair on nitrogen?

['Hamas' Jenkins]

What if you start with the lone pair on nitrogen?

Doesn't the first resonance arrow suggest that you are moving the pi bond in the upper right hand of the benzene ring to the C-N bond, and won't that gobble up that lone pair?

[The Franchise]

So you came here for help? LMAO

['Hamas' Jenkins]

So you came here for help? LMAO

I know. I've got another class in about 20 minutes and I figured I'd let a resident genious or two figure it out. It's the only problem left on the HW that is due at 11 tonight and I've been staring at the motherfucker for 45 minutes. It's driving me fucking crazy.

[Simply Red]

Restate my assumptions.







One: Mathematics

is the language of nature.







Two: Everything around us

can be represented and

understood through numbers.







Three: If you graph the numbers

of any system, patterns emerge.







Therefore, there are patterns

everywhere in nature.

[Ming the Merciless]

http://i.stack.imgur.com/mtGtO.png

[Ming the Merciless]

http://s2.quickmeme.com/img/24/2486fe33f8c6a1d13bbe1e23bc245e9e20c7c3c4f3d6361ed4044f9a2c326f99.jpg

[Dave Lane]

Dude it's been 35 years since my organic chemistry but that looks like the solution to me.

[siberian khatru]

Jennifer Lawrence

[Simply Red]

but that looks like the solution to me.

you forgot to cap my post.

[Simply Red]

Jennifer Lawrence






http://i62.tinypic.com/nlo9xc.gif

[Ebolapox]

sorry, been a bit too long since I got through organic. it looks done to me as well from memory, but... alas, life.

[Ming the Merciless]

Dude it's been 35 years since my organic chemistry but that looks like the solution to me.

I cann tell u that my curve is also already there, ever since looking at that other thread with the porno burgers

[Ming the Merciless]

I found this question on another test of the same company

http://media.cheggcdn.com/media/4f2/4f215fa6-0962-40ef-b923-4468727c55db/phpftn4xO.png


with no curved lines

maybe u got instructors manual???? NICE

[Halfcan]

B B B B B B B B B B B B B B

Always pick B in a multiple choice test.

[Don Corlemahomes]

Doesn't the first resonance arrow suggest that you are moving the pi bond in the upper right hand of the benzene ring to the C-N bond, and won't that gobble up that lone pair?

I think the instructions in the lower righthand box are suggesting you indicate the movement of electrons in that last structure from the double bond between C1 and nitrogen back onto the nitrogen as a lone pair.

****, been 5 years and a near total dump of the concepts from that awful class.

[Don Corlemahomes]

****, no. Maybe you have to complete each by adding arrows to show the movement of electrons onto each carbon in the ring, and also show the movement of electrons back onto the nitrogen in the fourth, a la this one:

http://media.cheggcdn.com/media%2F9e8%2F9e8f5644-9987-495a-abe3-528909e087f0%2Fphp2IKNBn.png

[Ming the Merciless]

****, no. Maybe you have to complete each by adding arrows to show the movement of electrons onto each carbon in the ring, and also show the movement of electrons back onto the nitrogen in the fourth, a la this one:


man crush

http://i.imgur.com/MCjsl4W.gif

[Buehler445]

I have no idea. But I have a buddy that has a doctorate and some post doc work in chemistry. PM me if you want me to call him.

[Zebedee DuBois]

aniline

[DrunkBassGuitar]

So in that first picture, if you moved the double bond to the amine, the nitrogen would have a negative charge, because it's going to have a double bond, plus 2 hydrogen, plus it's electron pair. nitrogen doesn't like that (octet rule). also the carbon that loses that double bond is going to be positively charged since it will be only bound to 2 carbons and a hydrogen and is missing a valence electron. It's been years since I've done something like that example. But you have a conjugated system.

The electron pair moves from the N to the carbon closest to it to form the double bond, and an electron pair moves from that carbon to the one adjacent to it. I'm a little confused by how they drew it though. but it's been a long time for me and we only went over ortho, para, and meta for one session

here's a decent picture of what I mean
http://research.cm.utexas.edu/nbauld/CHAPTER%2021_files/image033.gif

basically the nitrogen has a partial positive charge and all of the carbons have a partial negative if that makes sense

[-King-]

Four.

[Buzz]

Two single bonds and two lone pairs on N

[Hog's Gone Fishin]

You dipwad, That's already answered . I jerk off friggin pigs and know that !

[Simply Red]

When you all get this sorted - I have a few Algebra II questions.

Thanks!

[Buzz]

When you all get this sorted - I have a few Algebra II questions.

Thanks!

All Alegbra questions ends in Q.

[Don Corlemahomes]

So in that first picture, if you moved the double bond to the amine, the nitrogen would have a negative positive charge, because it's going to have a double bond, plus 2 hydrogen, plus it's electron pair electron pair is lost. nitrogen doesn't like that (octet rule). also the carbon that loses that double bond is going to be positively chargedNo since it will be only bound to 2 carbons and a hydrogen and is missing a valence electron. It's been years since I've done something like that example. But you have a conjugated system.

The electron pair moves from the N to the carbon closest to it to form the double bond, and an electron pair moves from that carbon to the one adjacent to it. (Yes, which is why N isn't negative and C isn't positive, but the exact opposite) I'm a little confused by how they drew it though. but it's been a long time for me and we only went over ortho, para, and meta for one session

here's a decent picture of what I mean
http://research.cm.utexas.edu/nbauld/CHAPTER%2021_files/image033.gif

basically the nitrogen has a partial positive charge and all of the carbons have a partial negative if that makes sense

You haven't really provided any solution, other than describing what you see. OP can do that, but he needs a solution other than "it's already done, and this is happening" offered by others.

['Hamas' Jenkins]

Ok, so moving the lone pair on the last benzene ring on the carbon with the negative formal charge to form a double bond in the upper left hand corner is correct, but my attempts for the other three were not.

[DrunkBassGuitar]

You haven't really provided any solution, other than describing what you see. OP can do that, but he needs a solution other than "it's already done, and this is happening" offered by others.

it's not done, I was trying to describe why it can't be done (which is why the N had the negative charge and C with the positive in my post), the question is basically asking to push electrons.

I don't think I was very clear with what I wrote, and what you wrote is totally correct. it's asking for a mechanism, what is drawn in the question isn't totally right, which is what I was attempting (obviously very poorly) to communicate. you can't just move the double bond, since the N's electron pair have to go somewhere. again, I should have written that post better. better as in finishing the thought. I'm terrible at teaching over the internet (and in general)

[DrunkBassGuitar]

Ok, so moving the lone pair on the last benzene ring on the carbon with the negative formal charge to form a double bond in the upper left hand corner is correct, but my attempts for the other three were not.

what were your attempts for the other 3?

[Don Corlemahomes]

it's not done, I was trying to describe why it can't be done (which is why the N had the negative charge and C with the positive in my post), the question is basically asking to push electrons.

I don't think I was very clear with what I wrote, and what you wrote is totally correct. it's asking for a mechanism, what is drawn in the question isn't totally right, which is what I was attempting (obviously very poorly) to communicate. you can't just move the double bond, since the N's electron pair have to go somewhere. again, I should have written that post better. better as in finishing the thought. I'm terrible at teaching over the internet (and in general)

No worries man. You're good.

['Hamas' Jenkins]

I think I may have the first and last.

If you move the lone pair on the Amine group to form a double bond and then break the pi bond in the upper right hand corner of the benzene ring, giving that lone pair to the carbon in the upper right hand corner, that should work for #1

#4 works when I break the pi bond connecting the amine group to the nitrogen, giving it a lone pair.

[DrunkBassGuitar]

No worries man. You're good.

well I looked at my post again after you replied and I'm like "yeah, what I wrote was hilariously wrong"

but the picture should be the right mechanism

['Hamas' Jenkins]

Got it.

[DrunkBassGuitar]

I think I may have the first and last.

If you move the lone pair on the Amine group to form a double bond and then break the pi bond in the upper right hand corner of the benzene ring, giving that lone pair to the carbon in the upper right hand corner, that should work for #1

#4 works when I break the pi bond connecting the amine group to the nitrogen, giving it a lone pair.

so for 2 and 3 you're just shifting that lone pair. you can use it to form a double bond, and since you can't have 2 adjacent double bonds on that structure you can break the other bond

[Don Corlemahomes]

Ah so you can use the lone pair.

['Hamas' Jenkins]

I started out by erasing the arrows, which were put there by a devious cocksucker who should have his pisshole reamed out with a toilet brush. From there, it was pretty straightforward.

I have no fucking idea why they'd put the goddamn arrows there. All it does is fuck up the understanding of the problem.

http://i59.tinypic.com/wtc5s0.jpg

['Hamas' Jenkins]

Many rheps to those who provided assistance. Your deeds will be recorded for the next life.

[Don Corlemahomes]

I started out by erasing the arrows, which were put there by a devious one who sucks the penis who should have his pisshole reamed out with a toilet brush. From there, it was pretty straightforward.

I have no ****ing idea why they'd put the goddamn arrows there. All it does is **** up the understanding of the problem.

http://i59.tinypic.com/wtc5s0.jpg

Glad you got it! Good work. May I ask why you are taking Organic?

['Hamas' Jenkins]

Glad you got it! Good work. May I ask why you are taking Organic?

Career change. One of 12 classes I need to take to knock down pre-reqs for pharmacy school. Eventually, I want to be a nuclear pharmacist.

[Don Corlemahomes]

Career change. One of 12 classes I need to take to knock down pre-reqs for pharmacy school. Eventually, I want to be a nuclear pharmacist.

Badass. Good luck.

[kevonm]

I became a doctor so I wouldn't have to deal with this crap. Go back to the lab, nerds


I kid. Good luck

[Dayze]

I"m sorry, I don't speak Spanish.

[Dayze]

Career change. One of 12 classes I need to take to knock down pre-reqs for pharmacy school. Eventually, I want to be a nuclear pharmacist.

:eek: god damn dude.

ambition has no place here.

[Kaepernick]

You should have asked me 35 years ago. I used to know this shit, but I went Civil Engineering and haven't used it since.

Go ahead, ask me the last time in my career that I had to use integration to figure out the maximum length of a ladder that could navigate a 90 degree bend with in a 4' wide corridor.

Go ahead, ask me the last time in my career I had to rotate a solid.

Go ahead, make my day.

[88TG88]

Quit that shit, it wont get you any pussy

[Kaepernick]

Quit that shit, it wont get you any pussy

Actually it will, if you get a high paying career, Mercedes, 3000 SQFT McMansion= pussy.

[Kaepernick]

Career change. One of 12 classes I need to take to knock down pre-reqs for pharmacy school. Eventually, I want to be a nuclear pharmacist.

Crap, I've never heard of a nuclear pharmacist before. Had to Wiki it. It is a whole entire industry.

With the Boomers all aging and dying the next 20 years, medicine is a great career field. Decent pay and job security, for at least while the Boomers are dying. Then the nice thing is, all the Boomers in health care will die off to, leaving a nice backlog of vacancy for the next generation of health care workers.

And this all outpaces inflation.

Good career choice. Never heard of nuclear pharmacy. You learn something new every day.

I would only hope that it is low risk. Some of these "safe" nuclear related occupation expose employees to a lot more nuclear radiation than they think or than it should. Oh, everything is Fed OSHA compliant, & etc., etc. Just, the medical industry lobbies Fed OSHA too.

['Hamas' Jenkins]

Crap, I've never heard of a nuclear pharmacist before. Had to Wiki it. It is a whole entire industry.

With the Boomers all aging and dying the next 20 years, medicine is a great career field. Decent pay and job security, for at least while the Boomers are dying. Then the nice thing is, all the Boomers in health care will die off to, leaving a nice backlog of vacancy for the next generation of health care workers.

And this all outpaces inflation.

Good career choice. Never heard of nuclear pharmacy. You learn something new every day.

I would only hope that it is low risk. Some of these "safe" nuclear related occupation expose employees to a lot more nuclear radiation than they think or than it should. Oh, everything is Fed OSHA compliant, & etc., etc. Just, the medical industry lobbies Fed OSHA too.

A lot of my scholarship in grad school focused on the excesses of the enrichment process as part of weaponization of nuclear materials. At this point, I've gravitated towards the Peaceful Atom.

There are dozens of horror stories. Du Pont buried plutonium in cardboard boxes near the Savannah River plant; tons of workers end up with polycythemia vera (the opposite of anemia); small towns in Utah were irradiated en masse, suffering much higher rates of childhood cancers and so on.

All of my work would be behind shields of lead, titanium, or tungsten, with leaded glass gloves. Comparatively safe.

[Kaepernick]

A lot of my scholarship in grad school focused on the excesses of the enrichment process as part of weaponization of nuclear materials. At this point, I've gravitated towards the Peaceful Atom.

There are dozens of horror stories. Du Pont buried plutonium in cardboard boxes near the Savannah River plant; tons of workers end up with polycythemia vera (the opposite of anemia); small towns in Utah were irradiated en masse, suffering much higher rates of childhood cancers and so on.

All of my work would be behind shields of lead, titanium, or tungsten, with leaded glass gloves. Comparatively safe.

Good to hear it. You hope the government is a bit more aggressive these days in ensuring safety compliance for workers in nuclear fields, but companies will always strive to reduce costs, even at the expense of employee safety.

Peaceful atoms, warlike atoms. They are all good!

[mdchiefsfan]

Inject antifreeze. You're welcome!!

[Reaper16]

B B B B B B B B B B B B B B

Always pick B in a multiple choice test.

I did that on the mathematics portion of the GRE. Picked B for every answer & didn't even try to think about a single question. That didn't work out well. I landed in something like the 09th percentile.

[Kaepernick]

I did that on the mathematics portion of the GRE. Picked B for every answer & didn't even try to think about a single question. That didn't work out well. I landed in something like the 09th percentile.

:LOL:

[Simply Red]

Quit that shit, it wont get you any pussy

well hi buddy.

[Simply Red]

Many rheps to those who provided assistance. Your deeds will be recorded for the next life.

- I hope I'm not being cross-examined here.

[O.city]

When/where are you hoping to go to Pharmacy school? If UMKC, PM me. I know alot of people there if you need anything.

[Don Corlemahomes]

I became a doctor so I wouldn't have to deal with this crap. Go back to the lab, nerds


I kid. Good luck

Same. I'm not THAT far removed from it, but I have crowded out the fundamentals of organic with basic science and clinical shit that doesn't require much OChem knowledge.

[Simply Red]

I became a doctor so I wouldn't have to deal with this crap. Go back to the lab, nerds


I kid. Good luck

You're good - Nice work.

You seem like a good person to me.



:clap: