3 Flashcards
1
Q
Factors affecting J value
1. Bond distance
2. Bond angle
A
- Jitney pass protons honge eutna zada coupling hoga distance jaise jaise bhadega coupling kaam Hota jayega
- J value directly proportional to bond angle
2
Q
How many types of coupling constant
A
1.1j CH
2. 2j GEMINAL
3. 3 j VICINAL
4. 4 J W
3
Q
J values
O to 2 hz
2 to 4
6 to 8
8 to 12
12 t 16
16 to 18 hz
A
4j
2j sp2 carbon diastereotopic
3j vicinal on single bond ,cis ,Trans
2j geminal sp3
4
Q
5H , multiplet
A
Monosubstituted benzene ring
5
Q
Broad signal give by
A
Amine group
6
Q
0 to 3 hz ke beech me kiss Tarah ke protons ke peaks dikae hai
A
Sp3 carbon se Jude EŴ group