1. Tardigrade
  2. Question
  3. Chemistry
  4. The observed dipole moment of nitromethane is higher than the dipole moment calculated from electronegativity of carbon, nitrogen and oxygen atoms because of

Q. The observed dipole moment of nitromethane is higher than the dipole moment calculated from electronegativity of carbon, nitrogen and oxygen atoms because of

 52  139 Organic Chemistry – Some Basic Principles and Techniques Report Error

Solution:

In nitromethane, hyperconjugation occur significantly as
image
The above hyperconjugation and involved charge separation is responsible for the large dipole moment of nitromethane than calculated theoretically.