Charge, on metal

Snyder, E. E., Buoscio, B. W., and Falke, J. J. (1990). Calcium(II) site specificity Effect of size and charge on metal ion binding to an EF-hand-like site. Biochemistry 29, 3937-3943. 

HypB protein, 47 289 HypC protein, 47 289 Hyperfine coupling, 13 149-178 anisotropic, 13 150-161 Hyperfine coupling anisotropic dipolar, 13 150-154 nuclear Zeeman interaction, 13 155 quadrupole interaction, 13 154, 155 factors affecting magnitude of metal influence of charge on metal, 13 169-170 isotropic and anisotropic, 13 166-170 libration, 13 170... 

The presence of electrons in d orbitals, which may be involved in back donation, is not a prerequisite for the stabilisation of an imine by co-ordination some imines are stabilised by co-ordination to lead(n). The many factors involved (charge on metal, charge on ligand, back-donation, configuration of ligand, stabilisation of products, etc.) are interdependent and finely balanced. The formation of a chelated imine complex is an important factor, but once again examples are known in which chelated ligands are either activated or deactivated towards hydrolysis. 

Cation anion ratio in complex Charge on metal ion Charge on ligand pKo Concentration of complex at / = 0 (xlO4 mol nT1) Extent of complexation at 2.6 mol m-3 of complex formation at / = 0... 

The specific property of nickel nanoparticles deposited onto silicon substrates of different types of doping was also clearly manifested in another reaction we studied, hydrogenation of multiple bonds. It is known that the optimal situation for catalysis of processes of this kind is presence of a positive charge on metallic particles [43]. This can be achieved upon deposition of Ni nanoparticles onto p-type silicon. Indeed, experiments did show that the activity of Ni nanoparticles onto p-type silicon exceeds by nearly two orders of magnitude the activity of catalysts based on ultra-dispersed platinum and palladium, prepared by other methods. 

Complex ion 4-orbital Configu- ration Ionic Character % Sigma Character % P> Character % Charge on Metal atom % Ionic Character assuming pi = 0... 

Figure 4.9 The surface charge on metal attracts polar water molecules forming a double layer. (From Ref. (10)), adtq>ted by permission of Prentice-Hall, Inc.).

Avogadro s number charge on metal or ligand ionic strength... 

Table 19.2 Adsorption energies E ) of TMA onto model metal clusters, gross MuUiken charges on metal clusters, and intermolecular distances between metal cluster and N atom in TMA...

Model Ead, kcal/moP Gross charge on metal clusters / (metal-N) , A... 

The effect of a unit negative charge was estimated to give approximately 145 cm decrease of i/(NO) per unit of the negative charge on metal complexes with linear NO groups. 

One would, therefore, predict that the most stable complexes would be made up of oppositely charged ions and, moreover, that the greater the charge on the ions and the smalller the ions the greater should be the stability. Small ions are favored because their centers can be closer together. From this point of view the stability of complexes should increase with the charge on metal ions. One illustration of this behavior is the increase of stability of hydroxide complexes with an increase in charge of the metal ion. The stability of... 

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