The Application of Simple and Easy to Implement Decoupling Pulse Scheme Combinations to Effect Decoupling of Large 𝐽 Values with Reduced Artifacts

Figure 4

The ³¹P NMR spectrum of HP(=O)(OCH₂CH₃)₂ indicates the resultant sidebands with decoupling of ¹H by (a) CPD decoupling using WALTZ (PW, 60 μs; PL, 10 dB; 𝜈_1/2, 1.33 Hz; DB, 10 kHz; SDB, 5 kHz); (b) CPD decoupling using WALTZ (PW, 45 μs; PL, 6 dB; 𝜈_1/2, 1.45 Hz; DB, 15 kHz; SDB, 3 kHz); (c) CPD decoupling using GARP (PW, 60 μs; PL, 9.4 dB; 𝜈_1/2, 1.35 Hz; DB, 19 kHz; SDB, 7 kHz); and (d) CPD decoupling using GARP (PW, 45 μs; PL, 7.4 dB; 𝜈_1/2, 1.43 Hz; DB, 26 kHz; SDB, 9 kHz).