Orientational information from TEDOR spectral sidebands.

摘要: Abstract In a dipolar-coupled spin-1/2 network of the type 15 N1– 13 C– N2, an assessment sensitivity N → C and C → N TEDOR sideband intensities to Euler angles defining orientation two heteronuclear dipolar vectors in C N chemical shift (CS) tensor principal axes system has been carried out via numerical calculations. The results clearly indicate potential MAS NMR spectroscopy for characterization CS molecular frame. efficacy method experimentally illustrated by studies on polycrystalline sample [1,3— 2 , 2— C]uracil, which is one four bases RNA.