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Grade: 12

                        

Chromophore showing both pie-pie* and n-pie* transition is: 1)Nitrile 2)Ethylenes 3)Acetylenes 4)conjugated-dienes

2 years ago

Answers : (1)

dolly bhatia
200 Points
							

n -> pi* centered around 220 nm

pi -> pi* centered around 190 nm
n ->
pi* involves non-bonding electrons of O of the carbonyl

pi -> pi* involves the pi-electrons of the carbonyl.

Peptide bond can undergo n-->pi*, pi--.pi* transitions.

2 years ago
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