PC isotopic labeling

To bypass this difficulty, BPA-PC isotopically labelled with 13 C at the carbonyl position has been synthesised and chemical shift anisotropy line shape has been studied from 100 °C down to - 255 °C [45]. 

Fig. 51 Experimental (solid line) and simulated (dotted line) 13C NMR spectrum at 25 MHz for BPA-PC isotopically labelled with 13C at the carboxyl position a T = - 177 °C and b T = 12 °C (from [45])...

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See also in sourсe #XX -- [ ]

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