What is the #pi# -bond effect? Organic Chemistry Nuclear Magnetic Resonance (NMR) Electronegativity and Shielding 1 Answer jonathan n. Nov 13, 2017 Look below Explanation: The #pi#-bond effect was the effect that connected orbitals (bonding), which would be #sigma# bonds that get bonded with each other. Answer link Related questions How does shielding affect electronegativity? How does the shielding effect relate to periodic trends? Why is electronegativity a factor that influences NMR spectra? What is shielding and deshielding in NMR? Can you give me an example? How is it called the effect of electronegative atoms on their neighbours? Why is the number of absorbing protons proportional to the area under a #""^1 "H"# NMR signal? What happens if the electron density around a nucleus is decreased? How do the chemical shifts of the protons in CR, and CH3Cl compare? How can I read in the NMR spectrum when increasing chemical shift? Which of the underlined protons in each pair absorbs farther downfield in NMR spectrum... See all questions in Electronegativity and Shielding Impact of this question 4874 views around the world You can reuse this answer Creative Commons License