Home » Ask & Discuss » Chemistry. » Organic Chemistry « Back to Discussion

Organic Chemistry

Cool goIITian

Joined:	23 Mar 2007
Post:	85

29 Apr 2008 22:17:07 IST

0 People liked this

1004

are the carbon atoms in the benzene molecule chiral?

None

are the carbon atoms in the benzene molecule chiral?

Share this article on:

Comments (8)

ankita raisinghani

Cool goIITian

Joined: 22 Jan 2008

Posts: 85

29 Apr 2008 22:37:37 IST

Like 0 people liked this

C atoms in benzene are achiral unless thr is substitution in adjacent C atom

in unsubstituted benzene all carbons are achiral

plz rate

rohit

Blazing goIITian

Joined: 24 Jan 2008

Posts: 496

29 Apr 2008 22:41:16 IST

Like 0 people liked this

no they are not chiral

C atom is attached to -CH2 grp on both sides so it cant be chiral

but if is substituted properly it can become chiral

but still, i dont think it can be optically active because of its planar nature

the last line might be wrong

aditi garg

Scorching goIITian

Joined: 2 Nov 2007

Posts: 288

29 Apr 2008 22:49:23 IST

Like 1 people liked this

i also read somewhr that for carbon to be chiral it shud be sp3 hybridised but in benzene it is sp2 hybridised.. but im not sure abt it...
plzz correct me if im wrong...

SPARTIAN

Blazing goIITian

Joined: 19 Mar 2007

Posts: 585

29 Apr 2008 23:32:09 IST

Like 0 people liked this

@ aditi i think u r wrong

just look at this compound

-C $\doteq\\$ C $\doteq$ C-

at first site it will look optically inactive

but it indeed is optically active coz because the c on both sides r in different planes

one is along xz xis and others is along xy axis

cheers !!!

harsh _27

Blazing goIITian

Joined: 21 Apr 2007

Posts: 897

30 Apr 2008 09:40:14 IST

Like 0 people liked this

Aditi is right.

She's talking about chirality of a carbon not of a compound as a whole.

A compound can become chiral in many ways.It must be disymmetric for that.

Coming to the question, carbon atoms in Benzene are not chiral.

ashish banga

Blazing goIITian

Joined: 16 Dec 2006

Posts: 1362

30 Apr 2008 10:08:29 IST

Like 0 people liked this

not chiral

Skrishnasharma

New kid on the Block

Joined: 18 Apr 2008

Posts: 17

30 Apr 2008 12:46:16 IST

Like 0 people liked this

no. chiral carboa means all 4 valancies of carbon are different

nikhar

Cool goIITian

Joined: 29 Apr 2008

Posts: 68

30 Apr 2008 12:56:11 IST

Like 0 people liked this

no they r not chiral...else all groups linked to C are diferent

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team