Parenthesizing signal assignment

Concurrent signal assignment with additional parentheses... 

Note The assignment of the 3-5 signals may be interchanged. Coupling constants (Hz) are given in parentheses. b Not given. 

H and NMR spectral data. The field (MHz) and solvent are in parentheses. Chemical shifts (8) are in ppm relative to TMS. The multiplicity and the J values (in Hz) for H signals are given, with the assignment in parentheses. C signals are displayed on the chemical formulae. 

Figure 3 Assignment of the NMR signals of norgestrel in ppm. The upper (or single) values are the chemical shifts of the respective carbon nuclei from the C spectrum, while the lower values (in parentheses) are the assigned proton shifts in the spectrum. Solvent/reference CDCI3/TMS. (Courtesy of G. Balogh, Chemical Works of Gedeon Richter Ltd., Budapest.)...

Fig. 2.37. a Differential deuterium isotope shifts for C-NMR assignments for the tautomers of psicose (33 a-33 d) (384). Figure shows the carbon chemical shifts recorded in D2O numbers in parentheses represent the differential induced shift caused by deuterium exchange, b Number of carbon signals predicted for cellobiose (34) in OMSO-d under partial exchange numbers in parentheses represent number of observed signals (62)... 

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