Big Chemical Encyclopedia

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

Articles Figures Tables About

High crystal structure

Furthermore, it is observed that the orientation of the domains were arranged toward one direction. This direction of the domains arrangement seems to be related with the direction of cooling gas injection. This specific solidification causes the highly crystallized structure formation under microgravity solidification. [Pg.697]

Form C is excluded because of high crystal structure R factor. [Pg.68]

The synthesis of PTT with a low of 3.8xl(T to achieve the above-mentioned manageable thennal and mechanical properties has been reported (Table 1 Chiu and Ting 2(X)7 Pisitsak and Magaraphan 2009). Therefore, it may not be necessary to make PTT with a super-high In addition, since PPP has a highly crystallized structure, cannot affect its thermal and mechanical properties much (Li et al. 2008a, b B lard et al. 1988). [Pg.7]

Properties. The crystallinity of FEP polymer is significantly lower than that of PTFE (70 vs 98%). The structure resembles that of PTFE, except for a random replacement of a fluorine atom by a perfluoromethyl group (CF3). The crystallinity after processing depends on the rate of cooling the molten polymer. The presence of HFP in the polymer chain tends to distort the highly crystallized structure of the PTFE chain and results in a higher amorphous fraction. [Pg.5410]

Electron diffraction studies are usually limited to transferred films (see Chapter XV), One study on Langmuir films of fatty acids has used cryoelectron microscopy to fix the structures on vitrified water [179], Electron diffraction from these layers showed highly twinned structures in the form of faceted crystals. [Pg.130]

The induction energy is inlierently non-additive. In fact, the non-additivity is displayed elegantly in a distributed polarizability approach [28]. Non-additive induction energies have been found to stabilize what appear to be highly improbable crystal structures of the alkalme earth halides [57]. [Pg.194]

Bode, W., Papamokos, E., Musil, D. The high-resolution X-ray crystal structure of the complex formed between subtilisin Carlsberg and eglin c, an elastase inhibitor from the leech Hirudo medicinalis. Eur. J. Biochem. 166 (1987) 673-692... [Pg.146]

Ordinary tin is composed of nine stable isotopes 18 unstable isotopes are also known. Ordinary tin is a silver-white metal, is malleable, somewhat ductile, and has a highly crystalline structure. Due to the breaking of these crystals, a "tin cry" is heard when a bar is bent. [Pg.118]

WebLab Viewer gives a very-high-quality display suitable for publication and presentation. Molecules can be displayed as lines, sticks, ball and stick, CPK, and polyhedrons. In addition, different atoms within the same structure may be displayed in different ways. Text can be added to the display as well as labeling parts of the structure in a variety of ways. The user has control over colors, radii, and display quality. The program can also replicate a unit cell to display a crystal structure. Several types of molecular surfaces can be displayed. [Pg.352]

Syntheses, crystallization, structural identification, and chemical characterization of high nuclearity clusters can be exceedingly difficult. Usually, several different clusters are formed in any given synthetic procedure, and each compound must be extracted and identified. The problem may be compounded by the instabiUty of a particular molecule. In 1962 the stmcture of the first high nuclearity carbide complex formulated as Fe (CO) C [11087-47-1] was characterized (40,41) see stmcture (12). This complex was originally prepared in an extremely low yield of 0.5%. This molecule was the first carbide complex isolated and became the foremnner of a whole family of carbide complexes of square pyramidal stmcture and a total of 74-valence electrons (see also Carbides, survey). [Pg.65]

Ahrens, T.J., Anderson, D.L., and Ringwood, A.E. (1969), Equation of State and Crystal Structures of High-Pressure Phases of Shocked Silicates and Oxides, Rev. Geophys. 7, 667-707. [Pg.110]

An example of research in the micromechanics of shock compression of solids is the study of rate-dependent plasticity and its relationship to crystal structure, crystal orientation, and the fundamental unit of plasticity, the dislocation. The majority of data on high-rate plastic flow in shock-compressed solids is in the form of ... [Pg.217]

Watowich, S.I., et al. Crystal structures of influenza virus haemagglutinin in complex with high affinity receptor analogs. Structure 2 719-731, 1994. [Pg.87]

Figure 12.3 Two-dimensional crystals of the protein bacteriorhodopsin were used to pioneer three-dimensional high-resolution structure determination from electron micrographs. An electron density map to 7 A resolution (a) was obtained and interpreted in terms of seven transmembrane helices (b). Figure 12.3 Two-dimensional crystals of the protein bacteriorhodopsin were used to pioneer three-dimensional high-resolution structure determination from electron micrographs. An electron density map to 7 A resolution (a) was obtained and interpreted in terms of seven transmembrane helices (b).
Waksman, G., et al. Binding of a high affinity phosphoty-rosyl peptide to the Src SH2 domain crystal structures of the complexed and peptide-free forms. Cell 72 779-790, 1993. [Pg.281]

Scott, C.A., Peterson. P.A., Teyton, L., Wilson, LA. Crystal structures of two 1-A -peptide complexes reveal that high affinity can be achieved without large anchor residues. Immunity 8 319-329, 1998. [Pg.322]

Three common uses of RBS analysis exist quantitative depth profiling, areal concentration measurements (atoms/cm ), and crystal quality and impurity lattice site analysis. Its primary application is quantitative depth profiling of semiconductor thin films and multilayered structures. It is also used to measure contaminants and to study crystal structures, also primarily in semiconductor materials. Other applications include depth profilii of polymers, high-T superconductors, optical coatings, and catalyst particles. ... [Pg.477]


See other pages where High crystal structure is mentioned: [Pg.226]    [Pg.135]    [Pg.310]    [Pg.927]    [Pg.48]    [Pg.68]    [Pg.372]    [Pg.528]    [Pg.458]    [Pg.8]    [Pg.158]    [Pg.170]    [Pg.191]    [Pg.145]    [Pg.17]    [Pg.20]    [Pg.167]    [Pg.185]    [Pg.228]    [Pg.396]    [Pg.255]    [Pg.14]    [Pg.197]    [Pg.241]    [Pg.265]    [Pg.275]    [Pg.288]    [Pg.312]    [Pg.21]    [Pg.114]    [Pg.51]    [Pg.121]    [Pg.121]    [Pg.251]   
See also in sourсe #XX -- [ Pg.23 ]




SEARCH



Crystal structure high temperature

Crystal structure high-temperature cuprates

Crystal structure transitions, with high

Crystal structure transitions, with high pressures

Crystal structures at high pressure

Disorder-depleted Mutant Improved Crystallization Efficiency and Produced High Resolution Structure

High crystal structure calculation

High-performance liquid crystal molecular structure

High-resolution X-ray crystal structures

High-resolution crystal structure

© 2024 chempedia.info