FIGURE 1.
Structure of [15N2]urea. The coupling constant between 15N and the directly bonded protons is 90 Hz. These protons are in exchange with solvent water
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.