Spectroscopic and Imaging Observations of Intermolecular Single-quantum Coherence
Zhu X, Chen Z, Cai S, Zhong J, Zheng B
A new pulse sequence with three radio-frequency pulses was designed to detect NMR signals originating from pure intermolecular single-quantum coherence (iSQC) in samples with a single resonance peak. The analytical expressions were derived from the modified Torrey's equations with dipolar fields. The spectroscopic and imaging observations and simulated results support the theoretical predictions. The new sequence is insensitive to the imperfection of RF flip angles.