Robust and efficient 19F heteronuclear dipolar decoupling using refocused continuous-wave rf irradiation

► Refocused continuous-wave (rCW) decoupling for MAS solid-state NMR. ► 19F decoupling with improved performance for large isotropic and anisotropic shifts. ► The method is evaluated in comparison with previous state-of-the-art decoupling methods.