Steady-state free precession NMR in the presence of heteronuclear couplings and decoupling: More than meets the eye.

Summary: Scientists use powerful magnets in a technique called NMR to look at the tiny building blocks of molecules, like carbon and nitrogen. Usually, they use a standard method to get the picture. Another method, called SSFP, can be just as good and is very fast, but it is usually only used for simple things like water. This study looked at what happens when SSFP is used for more complex molecules where atoms naturally interact with each other. They found that these atom interactions can cause big distortions in the final picture, especially when the timing of the magnetic pulses matches the atoms' natural rhythms. Understanding these quirks helps scientists fix the distortions and get clearer pictures of complex molecules!