Relaxation times refer to the time it takes for a nucleus to return to its equilibrium state after being perturbed by an external magnetic field during nuclear magnetic resonance (NMR) experiments. These times, specifically T1 (spin-lattice relaxation time) and T2 (spin-spin relaxation time), are crucial for understanding how quickly a sample can be analyzed and how well signals can be distinguished in 1H and 13C NMR spectroscopy.
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