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Morphology tetrahedron

Carrick, L.M., Aggeli, A., Boden, N., Fisher, J., Ingham, E., and Waigh, T.A. "Effect of ionic strength on the self-assembly, morphology and gelation of pH responsive beta-sheet tape-forming peptides". Tetrahedron 63(31), 7457-7467 (2007). [Pg.41]

Palui, G. et al., Organogelators from self-assembling peptide based dendrimers Structural and morphological features. Tetrahedron, 2008.64(1) 175-185. [Pg.1061]

Fig. 2 Various morphologies of PPy nanomaterials synthesized using the template of cationic surfactants a ellipse, b hexagon, c tetrahedron, d rod, e needle, and f comb-like PPy nanomaterials... Fig. 2 Various morphologies of PPy nanomaterials synthesized using the template of cationic surfactants a ellipse, b hexagon, c tetrahedron, d rod, e needle, and f comb-like PPy nanomaterials...
Nanoparticles are generally assumed to be spherical. However, an interesting interplay exists between the morphology and the packing arrangement, specially in small nanocrystals. If one were to assume that the nanocrystals strictly follow the bulk crystalline order, the most stable structure is arrived at by simply constraining the number of surface atoms. It is reasonable to assume that the overall polyhedral shape has some of the symmetry elements of the constituent lattice. Polyhedra such as the tetrahedron, the octahedron. [Pg.5]

The second structural method for the classification of zeolites is described by Meier et al. (1968), based on a concept termed secondary building unit (SBU) as shown in Figure 6.1. The primary building unit for zeolites is the tetrahedron and the SBUs are the geometric arrangements of tetrahedra (Breck et al., 1974). Quite often, these SBUs tend to control zeolite morphology. [Pg.433]

The morphology of epitaxial graphene/CNT is highly influenced by the underlying SiC structure. The basic building block of a silicon carbide is a tetrahedron with four carbon atoms and a single... [Pg.117]

The electronegativity, the scale of lattice constant, and the geometrical orientation of the host surface determine the specific details of the adsorbate facilitation, bond ordering, and the orientation of the tetrahedron. This process gives rise to the versatile modes of crystal reconstruction and surface morphologies. For the analyzed representatives of transition metals, noble metals, and a... [Pg.11]

The electronic configuration is 4d 5s and 4d 5s for Ru and Rh, respectively. The electronegativity of both Ru and Rh is of the same value of 2.2. Their atomic radii a — 2.672(Ru) and 2.684(Rh) A] are comparable. The top two layers of both hcp(OOOl) and fcc(lll) surfaces share the same lattice geometry, packing in an AB order. The tetrahedral hcp(0001) site is more favorable than the fcc(lll) hollow site to facilitate an R4O tetrahedron. The nature and kinetics of the R4O cluster bonding and its consequences on the atomic valence and surface morphology for the two systems can be formulated as follows. [Pg.84]

Tymiak, a.a., K.L. Rinehart, Jr., and G.J. Bakus Constituents of Morphologically Similar Sponges Aplysina and Smenospongia Species. Tetrahedron 41, 1039 (1985). [Pg.328]

Aoki, S., Higuchi, K., Kato, A., Mmakami, N., and Kobayashi, M. (1999a) Myrmekiosides A and B, novel mono-O-alkyl-diglycosylglycerols reversing tumor cell morphology of ras-transformed cells from a marine sponge of Myrmekioderma sp. Tetrahedron, 55,14865—14870. [Pg.1002]


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See also in sourсe #XX -- [ Pg.257 , Pg.263 ]




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