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Thursday 1 January 2015

COSY , COSYDQF , Long-range COSY

cosy1




cosy2


COSY


longrangeCOSY
This technique allows to observe a pulse spin-spin interaction constant of less than 1 Hz. 
This example shows the interaction of the aldehyde proton (17) and the protons of the methylene group (18,19) with the protons of the benzene ring.


LONG RANGE COSY



NOESY


NOESY..........Correlation protons located close in space.






HXCORR













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