Perpendicular displacement

Of course, for time t = rtube the perpendicular displacement is of the order of D and, hence, the tube constraint is strongly felt. For t > rtube the perpendicular motions are essentially equilibrated and the dynamics is determined by individual motions along the tube ... 

Thus, the coordinate x measures the progress of the main reaction from R to P, whereas (y — j) is a measure of the perpendicular displacement from the pure concerted reaction path. 

When the states and 1 are of equal energy, AG = 0 and Eq. (5-78) becomes Eq. (5-76) with this condition, also, jc = a and y = z, describing the pure concerted reaction along the x coordinate with no net perpendicular displacement. An apparent failure of Eq. (5-76) may mean that Eq. (5-78) is applicable. 

Figure 10. Diagram derived from Figure 9 to illustrate the nonplanarity of the uranyl superphthalocyanine macrocyclic ligand. The perpendicular displacement of the atoms, in units of 0.01 A, is given with respect to an arbitrary mean plane.

Fig. 17. Formal diagrams of the porphinato cores of Fe(TPP) (left) and [Fe(TPP)(CI)J (right). The perpendicular displacement of each atom, in units of 0.01 A, from the mean plane of 24-atom core is given...

Figure 2.35 Growth of a face as perpendicular displacement for growth at a screw dislocation. The rate is directly proportional to the distance of the steps, their height, and rate of displacement (Equation 2.15).

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