Asked by Karina Ibarra on May 08, 2024
Verified
The 1H NMR spectrum of ethanol is acquired and the hydroxyl signal appears as a singlet instead of a triplet. Offer an explanation.
Hydroxyl Signal
A characteristic peak or signal in spectroscopy, especially in nuclear magnetic resonance (NMR) or infrared (IR) spectroscopy, indicating the presence of a hydroxyl (-OH) group.
Singlet
A term in spectroscopy describing a state where all electrons in an atom or molecule are paired, leading to no net electron spin.
Triplet
A quantum state of a molecule or atom in which its spin multiplicity equals three, often used in the context of electron configurations and spectroscopy.
- Exhibit proficiency in employing NMR spectroscopy for examining molecular dynamics and verifying the existence of particular atoms or functional groups.
Verified Answer
ZK
Zybrea KnightMay 10, 2024
Final Answer :
A fast exchange of the hydroxyl H from one ethanol molecule to another is occurring. This rapidly exchanging H produces a single, unsplit absorption at an average field.
Learning Objectives
- Exhibit proficiency in employing NMR spectroscopy for examining molecular dynamics and verifying the existence of particular atoms or functional groups.