Elliot structure

J. C. Elliot, Structure and Chemistry of the Apatites and Other Calcium Orthophosphates, Elsevier, Amsterdam, 1994. 

Figure 11 Effect of temperature on the yield of OH radicals from gamma radiolysis. Experiments (A) Kent and Sims [100], ( ) Elliot et al. [101] Calculation (solid line) IRT modeling using track structure simulation.

Some years ago in a continuing effort to understand phase diagrams, I had discovered [3] the following empirical rules among more than 300 binary phase diagrams reported in the literature (Hansen, Elliot Shunk) [4,5,6], The metallic radii, Ra, Rb, used are from INTERATOMIC DISTANCES (The Chemical Society, London, 1958) [7] and the structural notation follows that described in Handbook of Lattice Spacing and Structure of Metals (Pearson, 1958) [8]).. 

Figure 3.12. The diamond and zinc-blende structure depicted as a cubic array of vertexsharing tetrahedra. In ZnS, the zinc cations reside at the center of the tetrahedra and the sulfide anions at the vertices. (After Elliot (1998), The Physics and Chemistry of Solids. 1998. John Wiley Sons, Inc. Reproduced with permission.)...

The molecular structure, bond distances and angles were obtained from the electron diffraction work of Shen (2). These values are in good agreement with the earlier electron diffraction work by Akishin, Rambidl and Zasorin (3) and Palmer and Elliot (4). The principal moments of inertia are I - 530.1962 x 10" , Ig = 963.2338 x 10" , and I, - 1152.2532 x 10" g cm . 

Taking the next step, scientists used computer modeling to superimpose facial photographs onto the skulls to determine structural matches that would tell which family members the skeletons actually were. The computer technology and dental work positively identified the Czar and Czarina as two of the bodies. Then more news all of the remaining Romanov skeletons were of young females (Elliot 61). Alexei, the heir to the throne, was one of the missing--just as the rumors have always claimed. 

FIG. 9.6. The structure of the molecules Al2ae, Al2Bre, and Al2le according to Palmer and Elliot. 

It had been recognized early on (71) that there were similarities between the effects of administration adrenal gland extracts and stimulation of the sympathetic nervous system. Elliot (72) suggested that adrenaline might be released by sympathetic nerve stimulation and over the years the term adrenergic nerves became effectively synonymous with sympathetic nerves. In 1910 Barger and Dale (73) reported a detailed structure-activity relationship study of epinephrine analogs and introduced the term sympathomimetic for chemicals that mimicked the effects of sympathetic nerve stimulation, but they also noted some important differences between the effects of administered adrenaline and stimulation of sympathetic nerves. It was not until... 

Fig. 40. Phase diagrams for normal and anomalous structures, (a) Symmetrical phase diagram and coupled zone associated with a normal structure, (b) Asymmetrical phase diagram and coupled zone associated with an anomalous structure. After Elliot [23]. Reproduced with permission of the ASM International, Metals Park.

Prior to the advent of DDT and the organophosphates, the natural pyrethrins (32.33) found considerable use but were limited by their instability. The discovery of permethrin by Michael Elliot (3 4) proved a turning point for the new synthetic pyrethroids. Here were very active compounds that did not suffer from the stability problems of the natural compounds. And even now pyrethroid-like compounds continue to interest synthetic chemists due to their high insecticidal activity and relatively low mammalian toxicity. You would think that by now most of the very active compounds would have been found. but it seems that persistence and originality pay off. Workers at du Pont and FMC detail the structure-activity relationships for two groups of new pyrethroid-like compounds. Chemists at Dow reveal some of the intricacies in the synthesis of the cyclopropane carboxylate end of the molecule. 

Brooklyn was once a city on its own, as the imposing city structures downtown will remind you. Adjacent to the commercial downtown area, the residential Fort Greene neighborhood is home to Spike Lee. His production company, 40 Acres and a Mule, along with his clothing store, Spike s Joint, is located at 1 South Elliot Plaza. 

Ibid., pp. 25-6 Bhaskar, Feyerabend and Bachelard) p. 5 P. Dews, Althusser, Structuralism and the French Epistemological Tradition) in G. Elliot (ed.), Althusser A Critical-Reader (London Blackwell, 1994), pp. 104-41, p. 123. 

Although the ideal apatite atomic arrangement is described in space group/ 63//W, the pure hydroxylapatite and chlorapatite end-members actually crystallize in the sub-symmetric monoclinic space group P2 lb. As noted above, OH and Cl are too large to fit in the triangles of Ca atoms (Fig. 2). Early structure elucidation of the two end-members demonstrated (OH Kay et al. 1964, Elliot et al. 1973 Cl Hounslow and Chao 1968) that the OH and Cl are disordered above or below the Ca triangles at z = V4, /4 at any... 

Elliot JC (1994) Structure and chemistry of the apatites and other calcitrm orthophosphates. Stndies in Inorganic Chemistry 18. Elsevier Science, Amsterdam Elllingsen JE (1995) Pre-treatment of titanium implants with fluoride improves their retention in bone. J Mater Sci Mater in Med 6 749-753... 

Elliot et al. Inorg. Chem. 25, 1891 (1986)) have now provided complete physical details of the structure reported in Ref. 55. Complete details of the unusual iron structure reported in Ref. 118 are now available (/. Am. Chem. Soc. 108, 5598 (1986)), An unusual tungsten(VI) complex containing both an oxo and a peroxo ligand (cis) has been reported (Yang, C.-H., Dzugan, S. J., Goedken, V. L. J. Chem. Soc., Chem. Common. 1425... 

Elliot et al. 2003). Previously shown to produce fibrils, chaplin from S. coelicolor can bind thiofiavin T (Claessen et al. 2003), suggesting they too possess amyloid structure. 

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