Cross-hydrogen bond ^1hJ_N,H coupling constant in RNAs and DNAs ( 98PNAS14147, 99JACS6019 and 00JMR357-147), ranging from 1 to 4 Hz. Theoretical studies on the mechanisms involved in this coupling has been reported ( 01JACS4014 and 02JACS1190)

Application on a DNA-protein complex has also been reported ( 00JB39).