We further examined unrelaxed rotation around C12-C13 and around C9-C10 starting from the LM for rotation around C7-C8. In the case of rotation around C12-C13 starting at the C7-C8 LM, the energy profile looked much like that in the lower panel of Figure except that the origin was shifted upward by about 359 cm -1 . It appears that the energies for the C12-C13 rotation are just added to those for the C7-C8 LM. However, for the case of rotation around C8-C9 starting at the C7-C8 LM, the hydrogens of C9 overlapped strongly with C8 and induce a barrier of nearly 500,000 cm -1 . Thus, if C 14 H 30 is in a LM, full rotation around the axis of the carbons above or below those involved in the LM seems infeasible, at least for the unrelaxed structures, and the number of free free rotations around C-C bonds at normal energies (below 100,000 cm -1 ) will be limited to half the number of C-C bonds. Even so, assuming that rotations around adjacent C-C bonds cannot have simultaneous population of two local minima, and accounting for the fact that rotors, for example, around C2-C3 and C12-C13, are indistinguishable due to interchange symmetry, there are still 189 local minima in the range of 0 -2π for each rotor and in the energy range of 0 cm -1 to about 2200 cm -1 , not counting contributions from the methyl rotors. This large number of local minima leads to a great variety of quasi-stable molecular structures, even at fairly low energy.