Definition
The heteronuclear correlation of chemical shifts by scalar coupling derives from the existence of heteronuclear scalar coupling all owing a magnetization transfer from the more sensitive nucleus 
		
	 toward the less sensitive nucleus 
		
	.
The model experiment is the correlation 
		
	 
		
	 which uses the large direct coupling 
		
	 comprised between more 100 Hz and 200Hz and which allows to correlate the signals from a proton to that of a  
		
	 to which it is 
bound[1].








