Elder PJ1, Vargas-Baca I1.
Phys Chem Chem Phys. 2016 Nov 9;18(44):30740-30747.The frequency of the resonance of 125Te of two organo-ditellurides, R-Te-Te-R (R = 4-CH3C6H4 and 2-(CH3)2NCH2C6H4), in solution undergoes a low-field shift as the concentration of the sample increases. In sharp contrast, the resonance of a sterically hindered ditelluride (R = (C6H5(CH3)2Si)3C) and telluric acid display the opposite effect. While the negative concentration coefficients can be explained by the change in magnetic susceptibility, the positive coefficients are consistent with autoassociation of the molecules through tellurium-centred supramolecular interactions. Read More