Efficient and fast sign-sensitive determination of heteronuclear coupling constants.
Two complementary 1D NMR approaches for the fast and easy determination of the magnitude and the sign of heteronuclear J(XH) coupling constants are proposed: The Up&Down technique relies on the direct analysis of anti-phase multiplets whereas the Left&Right technique is based on the relative displacement between separate IPAP components.
Servei de Ressonància Magnètica Nuclear, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain.
Josep
J
Saurí
Pau
P
Nolis
Teodor
T
Parella
HSQMBC-TOCSY; Heteronuclear coupling constants; IPAP; Sign of coupling constants