MONOCHROMATIC NUCLEAR-MAGNETIC-RESONANCE NUTATION SPECTROSCOPY - CORRELATED FLUCTUATIONS OF DIPOLAR COUPLINGS AND ANISOTROPIC CHEMICAL-SHIFTS IN AROMATIC PROTON SYSTEMS
R. Konrat et al., MONOCHROMATIC NUCLEAR-MAGNETIC-RESONANCE NUTATION SPECTROSCOPY - CORRELATED FLUCTUATIONS OF DIPOLAR COUPLINGS AND ANISOTROPIC CHEMICAL-SHIFTS IN AROMATIC PROTON SYSTEMS, Journal of physical chemistry, 98(31), 1994, pp. 7488-7491
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.