Chemical Forums
1 Hour
1 Day
1 Week
1 Month
Forever
September 07, 2024, 09:49:10 PM
Forum Rules
: Read This Before Posting
Home
Help
Search
Login
Register
Chemical Forums
Chemistry Forums for Students
Organic Chemistry Forum
Resonance structures... doubts
« previous
next »
Print
Pages: [
1
]
Go Down
Topic: Resonance structures... doubts (Read 1326 times)
0 Members and 1 Guest are viewing this topic.
ve_90
New Member
Posts: 4
Mole Snacks: +0/-0
Resonance structures... doubts
«
on:
October 23, 2023, 05:59:17 AM »
How can I write the resonance structures of these unusual species?
Logged
rolnor
Chemist
Sr. Member
Posts: 2266
Mole Snacks: +153/-10
Re: Resonance structures... doubts
«
Reply #1 on:
October 23, 2023, 08:39:48 AM »
The bottom right is 2,4-pentanedione anion. The charge is on oxygen mainly so its a enolate
Logged
rolnor
Chemist
Sr. Member
Posts: 2266
Mole Snacks: +153/-10
Re: Resonance structures... doubts
«
Reply #2 on:
October 23, 2023, 08:41:41 AM »
The top-left is an allylic cation:
https://sv.wikipedia.org/wiki/Allylgrupp
Logged
rolnor
Chemist
Sr. Member
Posts: 2266
Mole Snacks: +153/-10
Re: Resonance structures... doubts
«
Reply #3 on:
October 23, 2023, 08:45:14 AM »
Bottom left is vinyl chloride, here is a video of the resonsnce structures
https://youtu.be/cgnUF2hV9-s?si=eSVgjotxmcr7IemW
Logged
Babcock_Hall
Chemist
Sr. Member
Posts: 5670
Mole Snacks: +328/-24
Re: Resonance structures... doubts
«
Reply #4 on:
October 23, 2023, 10:54:49 AM »
These are not particularly unusual chemical species. Resonance delocalization of charge is a stabilizing feature. Don't exceed eight electrons on C, N, O, or F, and it is difficult to go wrong.
Logged
rolnor
Chemist
Sr. Member
Posts: 2266
Mole Snacks: +153/-10
Re: Resonance structures... doubts
«
Reply #5 on:
October 23, 2023, 04:17:08 PM »
I agree, they are often seen in org. chemistry. There are a lot of knovledge in just the wiki for this basic kind of problems.
Logged
Print
Pages: [
1
]
Go Up
« previous
next »
Sponsored Links
Chemical Forums
Chemistry Forums for Students
Organic Chemistry Forum
Resonance structures... doubts