Two‐dimensional6Li,1H heteronuclear Overhauser spectroscopy (HOESY) in magnitude and pure absorption representations. Application to a dimer–monomer equilibrium of a 1,4‐dilithio compound

Abstract

Abstract6Li,1H HOESY was used both for the detection of short lithium–proton distances and for proton spectral assignments of 1,8‐dilithio‐1,2‐diphenylhex‐1‐ene, which exists as a monomer–dimer equilibrium mixture in tetrahydrofuran (THF‐d8). Experiments using magnitude mode, pure absorption and pseudo‐steady‐state mode representations are described. Pure absorption6Li,1H HOESY proved to be the superior method.