Magee’s equation

The geometry of molecular anions generally differs from that of the neutral molecule. For instance, N20 is bent whereas the N2O molecule is linear. This is one of the reasons why the vertical electron affinity of N20 is negative. This is also the reason why bending excitation increases the electron affinity [EA) of the molecule. From Magee s equation (see Eq. 3), we know that the increase in EA results in a larger distance Rc for the harpoon. A larger cross-section is therefore expected. This effect has actually been observed semiquantitatively in the chemiluminescent reaction Ba -t- N2O BaO + N2 [125, 126]. The same effect was confirmed later in an experiment where the internal excitation of N2O was carefully prepared [127]. It... 

Opposite to rebound reactions is the reaction Na + Ch — NaCl + Cl which proceeds via the spectator stripping mechanism. In this case, the crossing between the nonreactive covalent Na-Cl2 curve and the Na+Cl ion-pair curve, which promotes the reaction, occurs at a large distance [Re = 5.22 A, when using the chlorine adiabatic electron affinity in Magee s equation). This distance increases to 22.3 A when sodium is excited to the 3p P level. One would expect an increased reaction cross-section, but this is not observed because electron transfers at such large distance are inefficient. The overlap between the sodium HOMO and the CI2 LUMO is very small at these distances. As a result, when the crossing radius increases substantially, there is only a small effect on the dynamics of the reaction [164, 165]. 

The effects of solution concentration, osmosis time, and the osmosis temperature were studied in the osmotic dehydration of pineapple in sucrose solution [58]. The solute diffusion was analyzed by Magee s model. The effect of sucrose concentration C on rate parameter K was given by power law regression equation as A = 4.15 x 10 at 20 C. 

S., unpublished results Magee, P., private communication) led us to collect additional evidence for this equation. Nine more 2-phenyl-pyridazinones were synthesized and the 18 2/18 3 ratios were determined experimentally. The values ranged from -1.63 to 2.80 and a values ranged from -0.83 to 0.72 (Table IV). 

The N - S bond energy was calculated from the Pauling equation by Dr. Philip Magee (10). There is, for example, an obvious anomaly in the Raman and infra red frequencies (10) (11) (12) (13). 

The values in these tables were generated from the NIST REFPROP software (Lemmon, E. W., McLinden, M. O., and Huber, M. L., NIST Standard Reference Database 23 Reference Fluid Thermodynamic and Transport Properties—REFPROP, National Institute of Standards and Technolo, Standard Reference Data Program, Gaithersburg, Md., 2002, Version 7.1). The primary source for the thermodynamic properties is Magee, J. W., Outcalt, S. L., and Ely, J. F., Molar Heat Capacity C(u), Vapor Pressure, and (p, Rho, T) Measurements from 92 to 350 K at Pressures to 35 MPa and a New Equation of State for ChlorotrifluorometEiane (R13), Int. J. Thermophys. 21(5) 1097-1121, 2000. Validated equations for the viscosity and thermal conductivity are not currently available for this fluid. 

The anponent in (10.10-4) is also equal to (-ybW/lff). When beckoiixing and axial dispersion occur (I -S ) will be less than (l — S ). In the usual Re, mages encountered in fixed-bed extractions t can be estimated by using the following equations 7... 

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