Charge transfer dissociation

Nonsymmetric charge transfer Symmetric (resonance) charge transfer Dissociative charge transfer Associative ionization Photoionization Cumulative ionization... 

Figure 5 A schematic representation of the kinetics of charge-transfer dissociation proposed by Braun.

The binding energy is defined as the energy of the dissociation process AuL+ Au+ -I- L. All the calculated complexes were found to be stable with respect to the dissociation defined above. This dissociation is preferred relatively to the charge transfer dissociation which produces Au- -L+, since the ionization potential (IP) of gold, IP(Au) = 9.23 eV, is smaller than those of the Ugands, which are in the 9.3-12.6 eV range . 

This book deals with reactions only. However, other processes investigated by beam methods are relevant to reactive scattering. Non-reactive scattering in reactive systems provides valuable complementary information. So do studies at energies beyond those where new chemical bonds are formed. The reader is further referred to related experiments on inelastic scattering, charge transfer, dissociative charge transfer, and collision-induced dissociation. ... 

Charge-exchange (charge transfer) ionization. Occurs when an ion/atom or ion/molecule reaction takes place in which the chaise on the ion is transferred to the neutral species without any dissociation of either. 

It should be noted that dative bonds, like metal complexes and charge transfer species, in general have RHF wave functions which dissociate correctly, and the equilibrium bond lengths in these cases are normally too long. 

The proposed scenario is mainly based on the molecular approach, which considers conjugated polymer films as an ensemble of short (molecular) segments. The main point in the model is that the nature of the electronic state is molecular, i.e. described by localized wavefunctions and discrete energy levels. In spite of the success of this model, in which disorder plays a fundamental role, the description of the basic intrachain properties remains unsatisfactory. The nature of the lowest excited state in m-LPPP is still elusive. Extrinsic dissociation mechanisms (such as charge transfer at accepting impurities) are not clearly distinguished from intrinsic ones, and the question of intrachain versus interchain charge separation is not yet answered. 

The proton is not the only entity that can dissociate from a substrate or bond to it. We can enumerate other interactions, such as metal-ligand complexation, ion-pair formation, charge-transfer complex formation, etc. For the sake of brevity, we treat all of these as... 

A sample of 14N15NO was used to investigate whether Reaction 14 proceeds through a dissociative charge transfer mechanism involving an... 

The problems of distinguishing H+ produced from H2 by electron impact from the product of dissociative charge transfer reactions between He + and H2 can be studied by determining the kinetic energy distribution in the product H+ (6). The reaction He+ + H2 is exothermic by 6.5 e.v. if the products are atoms or atomic ions. If the reaction is studied with HD substituted for H2, then the maximum kinetic energy that can be deposited in the D + is approximately 2.16 e.v. On the other hand, D + can be produced by electron impact with 5.5 e.v. kinetic energy. If a retarding potential is applied at the repeller in the ion-source of a mass spectrometer, then it is possible to obtain curves related to the kinetic... 

Dissociative Charge Transfer. Knewstubb and Sugden (27) have observed mass spectrometrically that NO+ ions are formed when 1% of NO is supplied to the unburned gases of an atmospheric-pressure H2/02/N2 flame at 2300°K. These authors originally suggested that their results could be accounted for in terms of the dissociative charge transfer... 

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