MONOCHROMATIC NUCLEAR-MAGNETIC-RESONANCE NUTATION SPECTROSCOPY - CORRELATED FLUCTUATIONS OF DIPOLAR COUPLINGS AND ANISOTROPIC CHEMICAL-SHIFTS IN AROMATIC PROTON SYSTEMS

A new method to demonstrate the buildup of longitudinal two-spin order in an AX spin system on account of D-CSA cross-correlation is shown. Two-spin order 2I(2)AI(2)X is created by using trains of selective squ are pulses which nutate only one spin of a two-spin system. Moreover, it is demonstrated, by measuring different aromatic compounds, that ar omatic protons are prone to show an anisotropic chemical shift-CSA-ter m-of roughly 4-8 ppm.