N.m.r. evidence for a transition between isotropic and anisotropic thermal motion of nido-decaborane in an aromatic solvent
Abstract
The temperature dependence of the 1H and 11B longitudinal relaxation times and of the 1H nuclear shieldings in nido-decaborane (B10H14), in C6D5CD3 solution indicate that there is a transition between anisotropic and essentially isotropic molecular tumbling between ca.–35 and +25 °C; this transition has not previously been observed in solution.