Large-amplitude bending motion

In some cases, as for example for large amplitude bending motion, a power series is often used,... 

Large-amplitude bending motion indeed causes the diffuse structures in the H20(S) spectrum, but in a different way than suggested by Figure 8.10. 

As in the cases discussed in Section 8.1 an unstable periodic orbit, illustrated by the broken line in Figure 8.9, guides the indirect classical trajectories and likewise the temporarily trapped part of the quantum mechanical wavepacket. It essentially represents large-amplitude bending motion, that is strongly coupled, however, to the stretching coordinate... 

From the covariance map, in which the covariance coefficients [17] are plotted on a two-dimensional plane, we can identify the respective explosion pathways and show how the momentum components along the TOF axis of the different ion species are correlated. The characteristic patterns appearing in the double covariance map for the ion pairs (0+, 0+), (0+, C+) and (0+, 02+) ejected from C02 at the field intensity of 1015 W/cm2 were interpreted in terms of a large amplitude bending motion [18], where the widths of the bond angle distribution were found to be constant different charge states (z = 3-6). 

Fig. 7 Snapshots in time along the Cr(CO)6 trajectory to loss of CO projected onto two dimensions. The CO leaves in a rotationally excited state and a large amplitude bending motion is promoted in the Cr(CO)3 fragment. The chromium atom is represented by the black, carbon by the gray, and oxygen by the white circles. Adapted from [16]...

C.-S. Tung, S. C. Harvey and J. A. McCammon, Biopolymers, 23, 2173 (1984). Large-Amplitude Bending Motions in Phenylalanine Transfer RNA. 

Fig. 5.13. Experimental verification of the negative sign of the Fermi contact interaction. The top of the figure displays the detailed nuclear hyperfine levels for both positive and negative values of a/, along with the predicted absorption profiles for the current sub-Doppler experimental resolution. Shown at the bottom is the observed profile, clearly indicating quantitative agreement for af < 0. This experimental verification of the absolute sign of af for CH3 confirms the importance of spin polarization vs large amplitude bending motion in this simplest of tt radicals.

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