Applications of 1,1-adequate

1,1-adequate is not high in sensitivity because it uses ¹J_CC for signal observation. However, being an inverse analysis on the ¹H side, 1,1-adequate is capable of higher sensitivity analysis than inadequate.
For measurement conditions, parameters for¹J_CH and ¹J_CC are defined.

100 mg 4-methylumbelliferone/DMSO-d₆
Shown below are total and magnified views of 1,1-adequate.

Instruments used: JNM-ECZ400S+ROYAL probe
Measuring conditions: 48 scans (7h), J_constant=140 Hz, JCC=60 Hz

Reference

B. Reif, M. Kock, R. Kerssebaum, H. Kang, W. Fenical, C. Griesinger, JMR ser-A 1996, 118, 282-285 M. Kock, R. Kerssebaum, W. Bermel, MRC 2003, 41, p65-69