In NMR: The size of coupling constants (J values) depend on three factors: a. Through bond distance between the protons. b. Angle between the two C-H bonds. c. Electronegative substituents. 1. True 2. False

1 answer
Question:

In NMR: The size of coupling constants (J values) depend on three factors:
a. Through bond distance between the protons.
b. Angle between the two C-H bonds.
c. Electronegative substituents.
1. True
2. False

Answers

Answer:TrueIt is true that he size of coupling constants (J values) depend on three factors: a. Through bond distance between the protons. b. Angle between the two C-H bonds. c. Electronegative substituents.Explanation:With the increase in the valence angle the coupling constant reduces. The distance between the carbon atoms also influence coupling constant. With increase in bond length, the coupling constant decreases. Also the more an atom is electronegative, the lesser is the coupling constantThus, it is true that he size of coupling constants (J values) depend on three factors: a. Through bond distance between the protons. b. Angle between the two C-H bonds. c. Electronegative substituents.

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