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. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: Prog Nucl Magn Reson Spectrosc. 2019 May 11;112-113:55–102. doi: 10.1016/j.pnmrs.2019.05.002

Figure 11.

Figure 11.

R1ρ in the presence of chemical exchange. A) ωeff,GS (blue) and ωeff,ES (red) in the rotating frame where the spin-locking field ω1 appears stationary, for two-state and n-state exchange. B) Alignment of the net magnetization at the start of an R1ρ experiment for a system undergoing GS-ES exchange under fast and slow exchange regimes. C) Rotation of the magnetization of GS/ES spins around their respective effective fields leads to dephasing of the bulk magnetization along ωeff,OBS during the R1ρ experiment. Shown is a representative example under conditions of fast exchange.