Exact solutions for two-site exchange

3 NMR PARAMETERS IN THE PRESENCE OF EXCHANGE 4.3.1 Exact solutions for two-site exchange 

Having introduced the concept of exchange in a pictorial way, we treat now the more general case of exchange between two sites of different population and different intrinsic relaxation times. Under such conditions relaxation is not a single exponential but rather a double exponential process, where the individual 

---