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Molecules effects

Since in chemisorption systems it is reasonable to suppose that the strong adsorbent-adsorbate interaction is associated with specific adsorption sites, a situation that may arise is that the adsorbate molecule occupies or blocks the occupancy of a second adjacent site. This means that each molecule effectively requires two adjacent sites. An analysis [106] suggests that in terms of the kinetic derivation of the Langmuir equation, the rate of adsorption should now be... [Pg.701]

Bhuiyan L B and Hase W L 1983 Sum and density of states for enharmonic polyatomic molecules. Effect of bend-stretch coupling J. Chem. Phys. 78 5052-8... [Pg.1040]

Non-rigidity has important consequences for the rotation and vibration spectra. Extensive experimental investigations exist in this domain they are based on the elaboration of model hamiltonians to describe the external motions. Recently, non-rigid molecule effects on the rovi-bronic levels of PF5 have been examined , so leading to the prediction of the spectroscopic consequences of Berry processes. [Pg.44]

If the critical separation is determined for a large number of relative geometries of the electron and molecule it is possible to obtain a three-dimensional picture of the probability of ionization as a function of the orientation of the molecule. Effectively, the idea of an ionization cross section, the area the target molecule presents to the electron, is extended to a three-dimensional object defined by the critical distances, with ionization occurring when the electron penetrates the surface enclosing this volume. The volume enclosed by the electron impact ionization surface may be used to obtain an estimate for the cross section (volume averaged cross section) ... [Pg.327]

Log P (log10 of octanol/water partition coefficient for un-ionized molecules) Effective permeability (human jejunum) at pH 6.5 (Peff, cm s 1 x 104)... [Pg.423]

Aviram A, Joachim C, Pomerantz M (1988) Evidence of switching and rectification by a single molecule effected by a scanning tunneling microscope. Chem Phys Lett 146 490... [Pg.263]

The function of peptides as first messengers is evolu-tionarily very old. In phylogenetic terms, neuropeptides were established very early as molecules effecting intercellular communication. In coelenterates, such as Hydra, there are many peptides used in neurotransmission, but many of the conventional neurotransmitter systems, such as acetylcholine (ACh), catecholamines and serotonin,... [Pg.318]

Surface area of the substrate molecule effective aa combining region Surface area of the substrate molecule available as combining region... [Pg.91]

Dalton, B. J. (1971), Nonrigid Molecule Effects on the Rovibronic Energy Levels and Spectra of Phosphorous Pentafluoride, J. Chem. Phys. 54,4745. de Shalit, A., and Talmi, 1. (1963), Nuclear Shell Theory, Academic Press, N.Y. [Pg.225]

Atomic polarization is attributed to the relative motion of atoms in the molecule effected by perturbation by the applied field of the vibrations of atoms and ions having a characteristic resonance frequency in the infrared region. The atomic polarization is large in inorganic materials which contain low-energy-conductive bonds and approaches zero for nonpolar organic polymers, such as polyethylene. [Pg.75]

D + R- drug-receptor complex- effector molecule- effect... [Pg.18]

FIGURE 2-14 Proton hopping. Short "hops" of protons between a series of hydrogen-bonded water molecules effect an extremely rapid net movement of a proton over a long distance. As a hydronium ion... [Pg.60]

Although the above values involve very rough approximations, they do indicate qualitatively how buildup of excessive negative charge on a metal can destabilize a complex. Within the group of complexes shown. [Be(HaO)4J2+ and [AI H20)J3+ are/ stable, but the other two are not. Four water molecules effectively neutralize the +2 ionic charge of beryllium, but six water molecules donate too much electron density. [Pg.208]

VAN DER WAALS EQUATION. A form of the equation of state, relating the pressure, volume, and temperature of a gas, and the gas constant. Van der Waals applied corrections for the reduction of total pressure by the attraction of molecules (effective at boundary surfaces) and... [Pg.1667]

Effect of Polar Molecules Effect on Carrier Mobility in PR Materials... [Pg.273]

Adsorption of the adhesive to the surface can, also with smooth and non-swelling materials, provide a good joint molecular attraction between both kinds of molecules effects the adhesion. [Pg.228]


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Adsorbed molecules, effect

Anomeric effect in acyclic molecules

Anomeric effect, donor-acceptor molecules

Benchmark handling, Renner-Teller effect triatomic molecules

Centrifugal effects molecules

Chain molecules, kinetic effects

Chiral molecules field effects

Chiral molecules optical rotation effects

Clustering of Gas Molecules on Ions and the Standard High-Field Effect

Coherence effects large molecules

Conjugate molecules, effect

Conjugate molecules, effect pattern

Conjugate molecules, effect preservation

Effect of Excess Surface Modification Molecules

Effect of Molecule Chirality on Coupling

Effect of Small Molecule Antiplasticiser

Effect of Small Molecule Antiplasticisers

Effect of soft interaction between molecules

Effective Hamiltonian diatomic molecule rotational excitation

Effective nuclear charge molecules

Effects from Parity Violation in Molecules

Effects in heavy-atom molecules

Electric field effect on fluorescence of molecules

Electron correlation effect molecules

Energy Effects in Ion-Molecule Reactions

Heavy-atom molecules, relativistic effects

Hydrocarbon molecules equilibria pressure effects

Inertial effects linear and symmetrical top molecules

Molecules as Switches, Photochromic Effects

Molecules interface effects

Molecules medium effect

Nonlinear molecules Renner-Teller effect

Organic molecules solvation effects

Parity-Violation Effects in Molecules

Permittivity effects, polar molecule dielectric

Phenylethylamine molecule effects

Physicochemistry and the Off-Target Effects of Drug Molecules

Polar molecule hydrogen-bonding effects

Polar molecule hydrophilic group effect

Pragmatic models, Renner-Teller effect triatomic molecules

Prototype Molecules in Effective Potentials

Renner-Teller effect linear molecules

Renner-Teller effect tetraatomic molecules

Renner-Teller effect triatomic molecules

Show that effective volume of gas molecules is four

SiRNAs molecules silencing effect

Solution-processed organic field-effect small molecules

Solvation effects organic molecule spectroscopy

Solvation of non-polar and apolar molecules - hydrophobic effects

Solvent effects self-assembled molecules, chirality

Stark effect in diatomic, linear and symmetric rotor molecules

Steric effects and reactivity of strictly oriented molecules

Temperature Effects and Molecules That React

Temperature effects monoxide molecules

Templating organic molecules the caesium effect

The Hanle effect in molecules excited state

Theoretical Description of Correlation Effects in a Single Molecule

Topic 1.2. Heteroatom Hyperconjugation (Anomeric Effect) in Acyclic Molecules

Triatomic molecules effective Hamiltonians

Vibronic effects, molecules

Water molecule dipole effect

Wave function Renner-Teller effect, triatomic molecules

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