Fragment orientation

The detection probability for a given trajectory depends on the fragment orientation (its Mj value) and the nature of the probe transition. All of these images were obtained via the two-photon Ilg XAS) transition. Five rotational branches are thus possible O, P, Q, R and S. The amplitudes for each of these two-photon transitions can be obtained from a sum of paired, Mj-dependent, one-photon amplitudes.37 The O branch, for example, consists of a contribution from a parallel P-type transition to a 7A virtual state, followed by a perpendicular P-type transition to the final 1ffs Rydberg (which is assumed to be ionized promptly). The product of those two transition amplitudes must be summed with another product in which the first transition is perpendicular and the second is parallel. The P and R branches consist of four contributions each and the Q branch has six such terms in its transition amplitude. The required one-photon amplitudes are taken from Ref. 37. 

The vibration directions and refractive indices of crystal fragments of mon ammonium phosphate lying on a microscope slide in any orientation are given by the indicatrix in the following way. A crystal fragment, oriented with its unique axis at any angle 6 to the line of vision, is mentally replaced by the indicatrix (Fig. 48). Perpendicular to the... 

Fig. 8.27 Schematic experimental arrangement for measurements of the fragment orientation after photodissociation of the parent molecule [1067]...

Periglacial action accelerates hill creep, the latter being particularly well developed on thinly bedded or cleaved rocks. Creep material may give way to solifluction deposits on approaching the surface. The creep deposits consist mainly of flat rock fragments oriented parallel with the hillside and are interrupted by numerous shallow slips. 

Cone conformation A conformation of macrocycle which resembles a cone, cup or bowl with all similar chemical fragments oriented in the same direction. 

We envisage that the insights discussed in this chapter provide chemists with better design principles, and therefore contribute to a more rational fragment-oriented design of catalysts. 

Diefenbach A, De Jong GT, Bickelhaupt FM (2005) Fragment-oriented design of catalysts based on the activation strain model. Mol Phys 103 995... 

The drag depends on the several factors, i.e. the geometry, the surface roughness and the fragment orientation with respect to the direction of the initial velocity. An acceptable range values for Q is [0.8-1.1] for tank end-caps and a range values [1.1-1.8] for the rings (see Baker et al. 1983). 

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