Figure 18.
Geometries and relative energies of HStLi(2-c) ((18-a) through (18-c)) and HStLi(2-a) ((18-d) through (18-f)) in different environment. In (18-a) through (18-c), the shortest and the longest distances of the (phenyl)C–Li bonds are shown, and in (18-d) through (18-f), the distances of the (α)C–Li and (ipso)C–Li bonds are shown. ∆Hr and ∆Gr, the relative enthalpy and relative free energy in the gas phase, are expressed in kJ·mol–1. ∆Hrch and ∆Grch are the relative enthalpy and relative free energy in cyclohexane, and ∆Hrth and ∆Grth are those in THF, in kJ·mol−1.