Network two-dimensional

In a similar way, the sheets of the two-dimensional network silicates, shown in Figure... 

Another alternative prototype of memory array, consisting of data stored as electrostatic charge or molecular dipole in a two-dimensional network of streptavidin cross-linked by biotinylated porphyrin derivative, was also suggested. Information reading was expected to be carried out using the electric force mode of the atomic force microscope [70]. 

Several oxides and sulfides display the characteristics of network solids. The bond network of silica appears in Section 9-. Other examples are titania (Ti02) and alumina (AI2 O3). These two substances have extremely high melting points because their atoms are held together by networks of strong a covalent bonds. Like graphite, M0S2 is a two-dimensional network solid that serves as a solid lubricant. 

Tanaka, S Cai, L. T, Tabata, H. and Kawai, T. (2001) Formation of two-dimensional network structure of DNA molecules on Si substrate. Jpn. J. Appl. Phys., 40, L407-L409. 

Following Dehnicke s report in 1996 on the co-crystallization of diiodoacety-lene (DIA) with various halide anions to form two-dimensional networks through C-I X interactions [93], Kato et al. investigated these supramo-lecular anions in the electrocrystallization of classical TTFs such as BEDT-TTF. 

Muller, A., Das, S.K., Kogerler, P., Bogge, H., Schunemann, V., Krickmeyer, E. and Preetz, W. (2000) A new type of supramolecular compound molybdenum-oxide-based composites consisting of nanocapsules with encapsulated keggin-ion electron reservoirs cross-linked to a two-dimensional network. Angewandte Chemie-Intemational Edition, 39, 3413-3417. 

Figure 9.6 Trimer structure repeated in the two-dimensional network of closo-[3-Ru(C6H6)-8-HS-1,2-C2B9Hio]. (Reproduced with permission from ref. 8.)...

Squaric acid (H2SQ) has been chosen as a first test compound because it has a very simple molecular structure. Planar sheets of the squarate (C4O4) groups are linked to each other in a two-dimensional network through O - H...0 bonds (Fig. 1) with weak van der Waals forces [52,53]. The protons perform an order/disorder motion above the antiferroelectric phase transi-... 

A crystal of covalent solid can be considered as a single molecule held together as an extensive network of covalent bonds, with no individually distinguishable small molecules. Examples are graphite as multiple layers of two-dimensional networks. 

Morita Y, Miyazaki E, Umemoto Y, Fukui K, Nakasuji K (2006) Two-dimensional networks of ethylenedithiotetrathiafulvalene derivatives with the hydrogen-bonded functionality of uracil, and channel structure of its tetracyanoquinodimethane complex. J Org Chem 71 5631-5637... 

Mann has proposed a stochastic theory based on a two-dimensional network of interconnecting pores with varying radii to explain hysteresis and entrapment in porosimetry. By assuming that filling of some of the larger radii pores is delayed until surrounding smaller pores are filled, a mechanism similar to the filling of ink-bottle pores, Mann s calculated porosimetry curves often approximate those from actual samples. 

Rosettes, tapes (ribbons), fibers and two-dimensional networks... 

Lignin in the true middle lamella of wood is a random three-dimensional network polymer comprised of phenylpropane monomers linked together in different ways. Lignin in the secondary wall is a nonrandom two-dimensional network polymer. The chemical structure of the monomers and linkages which constitute these networks differ in different morphological regions (middle lamella vs. secondary wall), different types of cell (vessels vs. fibers), and different types of wood (softwoods vs. hardwoods). When wood is delignified, the properties of the macromolecules made soluble reflect the properties of the network from which they are derived. 

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