The splitting of energy levels in the presence of a magnetic field is caused by which of the following?
A NMR spectrum at room temperature reveals one well-defined peak. When cooled slightly, the peak becomes broadened. At temperatures, two well defined peaks are apparent. What is responsible for these observations?
What is the most likely cause of fluxional behavior in the NMR spectrum of , iron pentacarbonyl?
Which of the following correctly describes the relative intensities of splitting of an NMR peak?