Circles coordinate axes

Fig. 9.3 Occurrence of octahedral solid circles) and tetrahedral hollow circles) coordination in AX solids. (Reproduced with permission from [10] Copyright 1959 International Union of Crystallography)...

The uncertainty principle causes a spread of the transversal velocity of the photoion, Av - h/2M Ax its coordinate is accurately determined to be Ax, where M is the mass of the photoion. This spread, Aux, results in a circle of ion scattering on the screen with a diameter d = 2t Ax, where r is the flight time of the particle from the tip to the screen and R is the distance between the tip and screen. On the other hand, the circle of scattering on the screen, d, is also related to the indeterminacy of the coordinate at the point of detachment Ax(Ax = d/K), where K = R/r is the projector magnification coefficient. 

In Fig. 4 the equilibrium position of the ground state is indicated by the open circle, the equilibrium position of the excited state is shown by the black square. Neglecting the interaction with the normal mode (this means that Sg = 0), we found the values of the Ax, Ay, Az displacements produced by the full-symmetric vibration aig to be Ax = Ay = Az = 0.044 A. This position is shown in Fig. 4 by the black circle. Using these coordinates, the JT stabilization energy can be readily estimated to be 356.64 cm . ... 

FIG. 25.16. Infinite linear ions and molecules with octahedral coordination of metal atoms (a) AX4, (b) AXjLi in CuCli 2 H2O, (c) AX B in CuClj. C NaHj or CuClj. ONNfCHa) , (d) (CuCla) in KCuQa or in CuCla. NCCH3 (if shaded circles represent N), (e) [CuClaCHjO)] in LiCuCTla. 2 H2O (shaded circles represent H2O molecules). ... 

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