Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Gillespie-effect

In the transition group complexes containing a partly filled d shell, it is possible that a reminiscent Gillespie-effect contributes to the intensity of Laporte-forbidden transitions. Thus, the absorption band of Co(NH3)6 has roughly the same oscillator strength as -that of Co(NH3)5C1+2, and there is some evidence (54) that Cu is above the plane of the four ammonia molecules, not only in the tetragonal-pyramidic Cu(NH3)5+2, but also in an instantaneous picture in Cu(NH3)4 2 which would constitute essentially a Gillespie effect. [Pg.167]

R. H. Gillespie, Effect of internal stresses on bond strength of wood joints, NTIS PB-258 832j 5ST, prepared for Department of Housing and Urban Development, U.S. Department of Agriculture Forest Service, Forest Products Laboratory, Madison, WI, 1976. [Pg.352]

Source M.A. Imam, B.B. Rath, and D.J. Gillespie, Effect of Oxygen on Microstructure and Properties ofTi-6AI-2Cb-1Ta-1Mo Alloy, Titanium, Science and Technology, G. Lowering, U. Zwicker, and W. Bunk, Ed., Deutsche Gesellschaft fur Metallkunde, Germany, 1985... [Pg.179]

Gillespie and Miller (Ref 33) arranged various nitrating agents in order of increasing nitration effectiveness, namely ... [Pg.228]

Generalized relativstic effective core potentials (GRECP), ab initio calculations, P,T-odd interactions, 253-259 Gene transcription, multiparticle collisions, reactive dynamics, 108-111 Geometric transition state theory, 195-201 Gillespie s algorithm, multiparticle collisions, reactive dynamics, 109-111 Golden Rule approximation, two-pathway... [Pg.281]

The Gillespie-Nyholm rules can be applied with the aid of this formulation. The occurrence of both kinds of building blocks in Li2Sb, chains and dumbbells, shows that in this case the Peierls distortion contributes only a minor stabilization and is partially overridden by other effects. The Peierls distortion cannot be suppressed that easily with lighter elements. [Pg.137]

Gillespie, R.B. 1986. Effects of high tissue concentrations of selenium on reproduction by bluegills. Trans. Amer. Fish. Soc. 115 208-213. [Pg.1626]

Gillard, R. C., The Cotton Effect in Coordination Compounds Gillespie, Ronald J., see Sawyer, Jeffery F. Glasel, Jay A., Lanthanide Ions as Nuclear Magnetic Resonance Chemical Shift 7 215... [Pg.630]

Gillespie, R. J., Hartman, J. S., Parekh, M. Solvent Effects on the Boron-Fluorine Coupling Constant and on Fluorine Exchange in Tetrafluoroborate Anion. Can. J. Chem. 46, 1601 (1968). [Pg.187]

Manier DH, Gillespie DD, Sulser E Dual aminergic regulation of central beta adrenoceptors effect of atypical antidepressants and 5-hydroxytryptophan. Neuropsychopharmacology 2 89-95, 1989... [Pg.689]

Smith MA, Davidson J, Ritchie JG, et al The corticotropin-releasing hormone test in patients with post-traumatic stress order. Biol Psychiatry 26 349-355, 1989 Smith MA, Makino S, Kvetnansky R, et al Stress and glucocorticoids affect the expression of brain-derived neurotrophic factor and neurotrophin-3 mRNAs in the hippocampus. J Neurosci 15 1768-1777, 1995 Smith RB, Divoll M, Gillespie WR, et al Effect of subject age and gender on the pharmacokinetics of oral triazolam and temazepam. J Chn Psychopharmacol 3 172-176, 1983... [Pg.747]

When non-bonding valence electrons are present, the VSEPR model (Gillespie and Hargittai 1991) provides a simple explanation which correctly predicts the geometries of isolated molecules, but it is less effective in describing the behaviour in solids where secondary bonds are present. Both VSEPR and the bond valence model give only a semi-quantitative treatment, but the bond valence model is able to explain under what conditions the stereoactivity of the lone electron pair will be suppressed. [Pg.215]

Kaus, L. C., Gillespie, W. R., Hussain, A. S., and Amidon, G. A. The effect of in vivo dissolution, gastric emptying rate, and intestinal transit time on the peak concentration and area-under-the-curve of drugs with different gastrointestinal permeabilities. Pharm. Res. 16 272-280, 1999. [Pg.352]

Abstract—The equilibrium diagrams of the binary systems of sulphuric add with nitromethane and with o-y m- and p-nitrotoluene have been investigated. It has been shown that addition compounds of the type 1 1 are formed in these systems, analogous to the compound sulphuric acid-nitrobenzene (Chebbuuez Helv, Chim, Acta 1923 6 281 and Masson J. Chem. Soc. 1931 3201)t The formation of these addition compounds is due to hydrogen bonding between the components, rather than to proton transfer. Their stability in the crystalline phase seems to be contradictory to the known basicities of mononitrocompounds (Gillespie and Solomons J. Chem. Soc, 1957 1796), because of the effect of temperature on the equilibria in the liquid phase. [Pg.519]

The electrical conductivity isotherms of these systems are represented in Fig. 2, and the data are given in Tables 6-9. Tbe product x rf, which was used in our earlier papers [ 1] as a suitable measure of the extent of basic ionization in sulphuric acid solutions, can here be substituted simply by conductivity [6], because the differences in viscosities of these mixtures in the region of sulphuric acid are not considerable. It can be seen that the values of the electrical conductivities increase in the order nitrobenzene < m-nitrotoluene < o-nitrotoluene < p-nitrotoluene. This means that the basicities of these compounds increase in the same order, our results in that respect being in complete agreement with the conclusions of Gillespie and Solomons [6]. This increase of basicity is the result of the positive inductive influence of the methyl group in the benzene ring, but steric effects also play some part [6]. [Pg.541]

Where most dispersed systems will not have a uniform size distribution it must be expected that this size distribution will also have an effect on the total collision rate. A method of calculating this influence has been indicated by Gillespie (Gla). [Pg.294]

There were disturbances due to the liquefaction of the gas. P. Isambert found that the coeff. of compressibility of aq. soln. of ammonia is less than that of water alone and the more cone, the soln., the smaller the compressibility. For a litre of liquid at 21-5° containing 330 litres of dissolved gas, the coeff. was 0-0000376, and at 20-4° with 140 litres of dissolved gas, 0-0000387. Observations were also made by G. M. Maverick, and E. L. Nichols and A. W. Wheeler. 0. Maass and D. M. Morrison studied the effect of molecular attraction on the total press, of ammonia and E. Lurie and L. J. Gillespie, the equilibrium press, of mixtures of ammonia and nitrogen. F. Schuster calculated 4512 atm. for the internal pressure of the liquid and J. H. Hildebrand, 3900 atm. [Pg.177]


See other pages where Gillespie-effect is mentioned: [Pg.166]    [Pg.178]    [Pg.178]    [Pg.166]    [Pg.178]    [Pg.178]    [Pg.897]    [Pg.183]    [Pg.85]    [Pg.286]    [Pg.287]    [Pg.1621]    [Pg.182]    [Pg.66]    [Pg.52]    [Pg.29]    [Pg.147]    [Pg.378]    [Pg.561]    [Pg.139]    [Pg.345]    [Pg.325]    [Pg.141]    [Pg.65]    [Pg.158]    [Pg.1667]    [Pg.101]    [Pg.132]    [Pg.157]    [Pg.157]    [Pg.520]    [Pg.478]    [Pg.61]    [Pg.347]    [Pg.556]   
See also in sourсe #XX -- [ Pg.167 ]




SEARCH



Gillespie

© 2024 chempedia.info