Mode comparison

FIGURE 6-15. (Continued) (c) Effect of large-volume injection in isocratic mode. Comparison of injection of 10 /aL of sample (bottom) with 1.5 mL of sample (top) containing the same concentration of sample of 1 ppb of carbaryl and a-napthol. 

The development of the picosecond-jet technique is presented. The applications of the technique to the studies of coherence (quantum beats), photodissociation, isomerization and partial solvation of molecules in supersonic-jet beams are detailed with emphasis on the role of intramolecular energy redistribution. Experimental evidence for intramolecular threshold effect for rates as a function of excess molecular energy is given and explained using simple theory for the redistribution of energy among certain modes. Comparison with R.R.K.M. calculation is also made to assess the nature of the statistical behaviour of the energy redistribution. 

Figure 13.3 Binding mode comparison (a) of compound 1 and 2 for which a switch from entropy to enthalpy-dominated free energy of binding is observed, (b) Thermodynamic fingerprint of the two ligands [35].

Figure 8.12 Convergence of spectrum calculation for chlorophyll C2, molecule with 213 normal modes. Comparison of spectmm shape calculated with setto 10 (dashed line), 10 ...

Figure 8. Panel (A) displays the approach curve of the NSOM tip using tapping-mode feedback. Panel (B) displays the approach curve collect using the optical feedback mode. Comparison of the two simultaneously collected approach curves, indicates that the optical feedback approach curve begins to oscillate within micrometers of the surface, while tapping mode feedback remains unaltered until the tip is very elose to the sample surface Reproduced with permission from (Shiku et al. 1999). Copyright 1999 American Chemical Society.

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